2016

Photometry

Obs Code	Name	Longitude	Latitude	Altitude	Time (UT)
Q68	BMO	150d 20' 30"	-33d 42' 22"	950m	+10h

Telescope	Mount	f/ratio	Focuser	Camera	Location
SCT 0.35m	Paramount MX	5.9	TCFs	ST8XME	Q68
SCT 0.30m	EQ8	f5/5	TCF	ST10XME	Q68
CDK 0.61m	MI-1250 Fork	6.8	Planewave	U16M	Q68

Bracket next to Date Range indicate the location and system used. All period are light time corrected. An asterisk (*) after the name indicate published light curve in Minor Planet Bulletin.
Text colour correlate to the instrument system used for data aquisition.
PSABA: Photometric Survey of Asynchronous Binary Asteroids CALL: Collaborative Asteroid Light curve Link

832 Karin

May observations with some amplitude change.

832 Karin

April observations with lower amplitude than May

871 Amneris

Collaborative work with Frederick Pilcher and Vladimir Benishek has found this asteroid to be a tumbler.

Long period asteroid usually are tumblers.

44142 1998 HU96

1685 Toto

Requested a re observation this February 2016 in this apparition after last year's July pre opposition observing run for YORP studies by David V.

1741 Giclas

July 2016

PSABA target to find if the pair asteroid may also be binary

125 data points

Data taken with 24" CDK reflector with U42 (2015 Shoemaker NEO grant)

1741 Giclas

August 2016

97 data points

1741 Giclas

October 2016

233 data points. no attenuations detected

2100 Ra-Shalom\

Septmber 2016

An interesting target to observed. it could be a first detection of the YORP slowing rotational motion as described in

http://astro.troja.mff.cuni.cz/davok/papers/eger_yorp_aa2012.pdf

2100 Ra Shalom

October 2016

The NEA large sky movement and large change in PA is shown in the change in amplitude from the September light curve.

2656 Evenkia

PSABA target. Single periodic

2827 Vellamo

PSABA target.

The period is unique and found to be 3.7392h.

U=3

data taken with 24" CDK reflector with U42 (2015 Shoemaker NEO grant)

2956 Yeomans

Asteroid is in the same field as 5112 Kusaji.

Visual magnitude of 16.5m

data taken with 24" CDK reflector with U42 (2015 Shoemaker NEO grant)

3002 Delasalle

PSABA target

data taken with 24" CDK reflector with U42 (2015 Shoemaker NEO grant)

3220 Murayama

Still a suspect binary. Observations was instigated by Vladimir Benishek based on a paper published in MPB 2005 where a couple of attenuation was detected.

Despite a more extensive observing campaign from both stations, no orbital period was confirmed.

data taken with 24" CDK reflector with U42 (2015 Shoemaker NEO grant)

3220 Murayama

suspect binary but unconfirmed

data taken with 24" CDK reflector with U42 (2015 Shoemaker NEO grant)

3352 McAuliffe

NEA collaboration with Amadeo Aznar

3363 Bowen

PSABA target. Although it is a relatively bright target, the proximity to the full moon has caused considerable amount of scatters.

297 data points used to derive the rotation period of 3.018h consistent with Pravec 2015 of 3.0219h.

data taken with 24" CDK reflector with U42 (2015 Shoemaker NEO grant)

3738 Ots

PSABA target. Single period

data taken with 24" CDK reflector with U42 (2015 Shoemaker NEO grant)

3743 Pauljaniczek

PSABA target and probable binary. Lightcurve ploted primary rotation rate.

data taken with 24" CDK reflector with U42 (2015 Shoemaker NEO grant)

3743 Pauljaniczek

Assumed P_orb rotation period. Unconfirmed due to insufficient data.

data taken with 24" CDK reflector with U42 (2015 Shoemaker NEO grant)

4022 Nonna

PSABA target. Period and amplitude of this asteroid is typical for binary asteroid occurences.

4689 Donn

Partial data to support PSABA target.

Period of 122.5h found (Pravec 2016 web)

122 data points

data taken with 24" CDK reflector with U42 (2015 Shoemaker NEO grant)

5129 Groom

PSABA target in collaboration with R. Groom.

205 Data points used to arrive at a rotation period of 3.3798h. Unique solution

data taken with 24" CDK reflector with U42 (2015 Shoemaker NEO grant)

5940 Feliksobolev

Asteroid target of opportunity in the same field as 3220 Murayama on the 16th May 2016.

At magnitude 17, it was the same brightness as 3220.

data taken with 24" CDK reflector with U42 (2015 Shoemaker NEO grant)

6097 Koishikawa

PSABA target taken with 24". Unique solution for this trimodal asteroid taken over 3 consecutive nights.

122 data points used

data taken with 24" CDK reflector with U42 (2015 Shoemaker NEO grant)

6186 Zenon

Observations used to support the new binary discovery. First session has the event found at the beginning and second was entirely within the very long event. A short night during summer time has prevented BMO to observe the event in its entirity.

63 data points used from both sessions.

6488 Drebach

PSABA target done in collaboration with Roger Groom from Perth found to be unique solution .

6941 Delgarno

Asteroid target of opportunity in the same field as 3743 PaulJaniczec

data taken with 24" CDK reflector with U42 (2015 Shoemaker NEO grant)

7341 1991 VK

November 2016

This asteroid was selected from Goldstone NEA for radar observation. Large PA change found a period of 4.21h in November consistent with that obtained by Amadeo Aznar earlier in October showing a period of 4.219h at small phase angle. His data also show a small amplitude of 0.29M compare to 0.6m found in November.

7341 1991 VK

December 2016

Fast moving NEA showing large PA over observing time.

Light curves are plotted in 2 lots to show the large variation in amplitude during the changes in viewing Phase Angle

8078 Carolejordan

Target of opputunity in the same fov as 44142

33 data points used for an estimated light curve period of 3.5h

data taken with 24" CDK reflector with U42 (2015 Shoemaker NEO grant)

10301 Kataoka

PSABA target. Single period. Some scatters data taken with Ic filter.

data taken with 24" CDK reflector with U42 (2015 Shoemaker NEO grant)

9583 1990 HL1

Primary rotation period. Light curve plotted in P1 and P2 to show the possible double period. However it remained unresolved binary since no good solution can be obtained

9583 1990 HL1

P_orbital

11444 Peshekhonov

Single session target of opportunity showing flatish light curve estimated to be a very long rotation period object

35 data points used.

data taken with 24" CDK reflector with U42 (2015 Shoemaker NEO grant)

12867 Joeloic

long period 835h. preiously work was 400h

PSABA target

290 data points used to derive the period.

Data from September does not coincide with those with the November. This was either due to tumbling but most likely be the change in amplitude due to PA changes.

the light curve plotted is only of one cycle duration.

15202 Yamada-Houkoku

PSABA target found to have a period of 25h. Incomplete and only provisional period found.

128 data points used

16955 1998 KU48

PSABA target

18401 1992 WE4

Target of opportunity in the same fov as 11873 Kokuseibi.

A single night only available with 40 data points to the derive the period.

data taken with 24" CDK reflector with U42 (2015 Shoemaker NEO grant)

(20325) 1998 HO27

(20325) Julianoey

Orbital period of 23.52h

data taken with 24" CDK reflector with U42 (2015 Shoemaker NEO grant)

17325 1978 QW1

PSABA target showing large bimodal lightcurve

data taken with 24" CDK reflector with U42 (2015 Shoemaker NEO grant)

18099 Flamini

Target of opportunity in the same FOV as 44142 1998 HU96. 24" used

33 data points used to arrive on an estimated rotation period of 6 hours assuming a bimodal lightcurve pattern.

No previous work done

data taken with 24" CDK reflector with U42 (2015 Shoemaker NEO grant)

18851 Winmesser

PSABA target. Single periodic.

G is adjusted to -0.02 to allow the fit of the light curves to an accuracy of 0.03 mag.

The resultant synodic period is also changed slightly to the value shown in the plot.

19711 1999 TG219

It is a challenging target with long rotation period due to its very low amplitude bightness variation.

The amplitude is 0.29 mag. PSABA target.

data taken with 24" CDK reflector with U42 (2015 Shoemaker NEO grant)

36524 2000 QS80

Asteroid is in the same field as 5481 Kiuchi

data taken with 24" CDK reflector with U42 (2015 Shoemaker NEO grant)

37586 1991 BP2

An object selected from PSABA target list. It was detected to be one of the asteroids with the longest rotation period to

date. Observations were done in collaboration with Roger Groom from West Australia using unfiltered 0.3m SCT and ST8XME SBIG camera whereas those from BMO were taken with 24" CDK and U42 Apogee camera. The different instruments and filters used create a slight discrepancy in the observed absolute brightness that require adjustment of the zero point to approximate the correct brightness of the target.

An overall adjustment of 0.05m is added to the value of data obtained from BMO.

data taken with 24" CDK reflector with U42 (2015 Shoemaker NEO grant)

44142 1998 HU96

PSABA target. Unique solution.

359 data points used

data taken with 24" CDK reflector with U42 (2015 Shoemaker NEO grant)

57292 2001 QV174

PSABA target no light curve deviation.

79472 Chiorny

Long session with good quality data is required to solve this complex binary

BMO has not been able to continue with the observations due to geographical restriction

111 data points were used

86067 1999 RM28

Asteroid target of opportunity in same field as 5481 Kiuchi on 25th August 2016.

Estimated period only of 15h.

data taken with 24" CDK reflector with U42 (2015 Shoemaker NEO grant)

93259 2000 SD166

Target opportunity within FOV with 17325

data taken with 24" CDK reflector with U42 (2015 Shoemaker NEO grant)

94346 2001 QU88

PSABA target. incomplete..

97679 2000 GG2

PSABA target. A failed attempt to get more data. Target has passed beyond opposition.

163367 2002 PP

Target of opportunity in the same fov as 26927 1997 CD4

Estimated long period of >10h from the short segment obtained of a single session

25 data points used

data taken with 24" CDK reflector with U42 (2015 Shoemaker NEO grant)

327649 2006 QT26

Target of opportunity in same FOV as 17325

data taken with 24" CDK reflector with U42 (2015 Shoemaker NEO grant)

2009 DL46

NEA asteroid. Estinated period only shown.

data taken with 24" CDK reflector with U42 (2015 Shoemaker NEO grant)

(20325) 1998 HO27

(20325) Julianoey

Rotation period of primary

22938 Brilawrence

Asteroid is found in the same field as 5112 Kusaji.

it is at visual magnitude of 18.5m

data taken with 24" CDK reflector with U42 (2015 Shoemaker NEO grant)

25884 Asai

PSABA target

data taken with 24" CDK reflector with U42 (2015 Shoemaker NEO grant)

26927 1997 CD4

Target of opportunity in the same fov as 44142 1998 HU96

47 Data points used. Estimated rotation period of 3.5h after 1 session.

No previous work found.

data taken with 24" CDK reflector with U42 (2015 Shoemaker NEO grant)

26471 2000 AS152

Binary asteroid return on 3rd apparition

29790 1999 CW64

Single session target of opportunity with 24"

Long period estimated with 41 data points

data taken with 24" CDK reflector with U42 (2015 Shoemaker NEO grant)

31170 1997 WO58

PSABA target. Incomplete but most likely long period of 32h

80 Data points used.

58302 1994 PX8

Target of opportunity.

Estimated long period. 26 Data points used about 4.5hours long session

data taken with 24" CDK reflector with U42 (2015 Shoemaker NEO grant)

65433 2002 TX238

PSABA target data completed with double coverage

69805 1998 RF23

Asteroid target of opportunity in the same FOV as 5481 Kiuchi on the 25th August 2016. Possible binary.

data taken with 24" CDK reflector with U42 (2015 Shoemaker NEO grant)

96590 1998 XB

A NEA close approach favourable from southern hemisphere and to be targeted by goldstone Radar. However rotation period found to be 520h from previous work (Pravec 2005)

Work is abandoned to persuit other targets.

139053 2001 EP26

Target of opportunity in the same FOV as 17325

data taken with 24" CDK reflector with U42 (2015 Shoemaker NEO grant)

141354 2002 AJ29

NEO target. Collaboration with Amadeo Aznar.

181081 2005 QM36

Target of opportunity in the same FOV of 44142

267657 2002 TL74

Target is in the same field as 5481 Kiuchi.

Estimated rotation period is >30h

data taken with 24" CDK reflector with U42 (2015 Shoemaker NEO grant)

332884 2011 AG53

Asteroid is a target opportunity within the field of of 3743 PaulJaniczec. The light curve period is most likely be >100h as observed in 3 consecutive days showing a constant brightening over that period. no detectable short period within each session or lost in the noise.

data taken with 24" CDK reflector with U42 (2015 Shoemaker NEO grant)

2016 BA14

NEA target in collaboration with Amadeo Aznar

No.

Asteroid

2016

mm/dd

LPAB

BPAB

Period

Amplitude

Diameter

Telescope

832

Karin

05/22-05/30

832

Karin

03/09-04/02

871

Amneris

01/30-03/05

908

Buda

01/18-02/19

1685

Toro

01/22-02/17

1741

Giclas

06/28-07/03

1741

Giclas

08/21-09/04

1741

Giclas

09/27-11/02

2100

Ra-Shalom

09/11-09/27

2100

Ra-Shalom

10/13-10/31

2827

Vellamo

03/05-03/07

2656

Evenkia

03/05-03/12

2956

Yeomans

11/03

3002

Delasalle

04/26-05/24

3220

Murayama

04/15-05/05

3352

Mc Auliffe

11/24-12/02

3363

Bowen

05/17-05/18

3738

Ots

03/07-03/12

3743

Pauljaniczek

07/02-07/26

3743

Pauljaniczek

07/02-07/26

4022

Nonna

04/02-04/08

4689

Donn

03/25-05/04

5129

Groom

09/25-10/05

5940

Feliksobolev

05/13-05/14

6097

Koishikawa

12/24-12/26

6186

Zenon

12/17-12/19

6488

Drebach

11/21-11/26

6941

Dalgarno

06/29

7341

1991 VK

11/03-11/17

7341

1991 VK

11/24-12/09

8078

Carolejordan

09/25

9583

1990 HL1

06/12-06/29

9583

1990 HL1

06/12-06/29

10301

Kataoka

03/31-04/10

11444

Peshekhonov

06/29

12867

Joeloic

09/04-11/03

15202

Yamada-Houkoku

12/01-12/26

16955

1998 KU48

15/12/20-16/02/09

17325

1978 QW1

09/04-09/06

18401

1992 WE4

11/28

18099

Flamini

09/27

18851

Winmesser

03/13-04/30

19711

1999 TG219

01/09-04/28

20325

Julianoey

04/08-05/13

20325

Julianoey

04/08-05/13

22938

Brilawrence

11/03

25884

Asai

07/02-08/18

26927

1997 CD4

09/27

26471

2000 AS152

02/15-02/25

29790

1999 CW64

05/05

31170

1997 WO58

12/09-12/26

36524

2000 QS80

08/21-08/25

37586

1991 BP2

02/19-06/08

44142

1998 HU96

08/28-09/27

57292

2001 QV174

11/27-12/07

58302

1994 PX8

09/11

65433

2002 TX238

10/13-11/03

69805

1998 RF23

08/25

79472

Chiorny

12/17-12/27

86067

1999 RM28

08/25

03259

2000 SD166

09/04-09/06

94346

2001 QU88

96590

1998 XB

11/15-11/21

97679

2000 GG2

10/11-10/12

139053

2001 EP26

09/04-09/06

141354

2002 AJ29

05/13-05/30

163367

2002 PP

09/27

181081

2005 QM36

09/06

267657

2002 TL74

08/25

332884

2011 AG53

07/01-07/03

2009 DL46

06/07-06/12

2016 BA14

03/02-04/10