2011 - Minor Planet Photometry

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2011

Photometry


Obs Code

Name

Longitude

Latitude

Altitude

Time (UT)

E17

Leura

150d 20' 30"

-33d 42' 22"

950m

+10h

E19

Kingsgrove

151d 5' 45"

-33d 56' 51"

60m

+10h

Q68

BMO

150d 20' 30"

-33d 42' 22"

950m

+10h

Telescope

Mount

f/ratio

Focuser

Camera

FOV("/pix)

Location

SCT 0.25m

G11 Gemini v2

11

none

ST9XE

1.45

E19

SCT 0.35m

Celestron CGE

7(GEG reducer)

none

ST8XME

1.54 (bin2x2)

E17

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

617 Patroclus

Date range:10/08 - 20/09
Period:103.5 + 0.3h
Amplitude: 0.07 + 0.03m
H=8.18: G=0.15: Dia= 127.59
Albedo=0.058: Class=C:PA= 5.9, 10.1
LPAB = 312:  BPAB=-24

Called to observe by Fernando Mazzone for support studies.

918 Itha*

Date range:05/06 - 06/07
Period:3.47393 + 0.00006h
Amplitude:0.30m + 0.02m
H=10.7:G=0.15:=Dia=39.98:Abedo=0.058:
Class=C:PA=22  , 15
LPAB= 311 : BPAB= -7

Collaboration with Fernando Mazzone , Carlos Alberto Collazo and Andrés Chapman from Argentine.

1263 Varsavia

Date range: 30/1- 25/2
Period: 7.1683h + 0.0005h
Amplitude: 0.15 + 0.03m
H=10.5: G=0.15: Dia=24.88
Albedo=0.180:Class = S:PA=11
LPAB=130 : BPAB= -20, -15

CALL target.  

1278 Kenya*

Date range: 11/04 - 25/6
Period: 188.79h + 0.05h
Amplitude: 0.8m  + 0.1m
H=10.80:G=0.15:Dia=21.67
Albedo=0.180:Class=S:PA=8.1 , 5.9 , 23.6
LPAB=214 : BPAB=10

Collaboration work with Vladimir Benishek, Frederick Pilcher, David Higgins and J. Oey.
Light curve data plotted on Bin 5 setting.

1577 Reiss

Date range: 18/10 - 30/10
Period: 4.5045 + 0.0005h
Amplitude: 0.20 + 0.02m
H=13.10:G=0.15:Dia=7.51
Albedo=0.180:Class=S:PA=15
LPAB=162:BPAB=2

PSABA target

1660 Wood

Date range: 02/01/12 - 04/02/12
Period: 6.8089 + 0.0002h
Amplitude: 0.15 + 0.02m
H=11.90:G=0.15:Dia=13.06
Albedo=0.180:Class=S:PA=25
LPAB=125:BPAB=-32

CALL target. Collaborate with Eduardo Manuel Alvarez from Uruguay.

1702 Kalahari

Date range:28/7-26/8
Period: 21.153 + 0.005h
Amplitude: 0.12 + 0.01m
H=11.03: G=0.15: Dia=34.34
Albedo= 0.058: Class= C:PA= 5, 10
LPAB = 312 : BPAB = -7

CALL Target. The first light curve is unadjusted. CSS method is used to link the sessions using the average magnitudes of the catalog comp stars (MPOSC3). due to the smallish amplitude about 0.15m, the error of link (0.05) is shown.

1979 Sakharov

Date range: 09/05 - 09/22
Period: 7.522 + 0.005h
Amplitude: 0.15 + 0.03m
H=13.50:G=0.15:Dia=6.25
Albedo=0.180:Class=S:PA=2,8
LPAB=278,289: BPAB=5

PSABA target

2008 Konstitutsiya*

Date range: 31/3 - 9/6
Period: 11.2692 + 0.0004h
Amplitude: 0.05 + 0.05m
H=10.20 : G=0.15: Dia=50.33
Albedo=0.058: Class=C:PA=9.6,3.4,17.9
LPAB= 214 : BPAB= -8

Collaboration with Fernando Mazzone and Carlos Alberto Collazo from Argentine.

2015 Kachuevskaya

Date range:20/6-26/8
Period: 42.458 + 0.003h
Amplitude: 1.20 + 0.03m
H=12.40:G=15:Dia=10.37 Albedo=0.180:Class=S:PA=19.2, 7.0, 16.3
LPAB= 302 : BPAB= -9

CALL target

2130 Evdokiya

Date range: 21/6-25/6
Period: 4.354  + 0.002h
Amplitude: 0.50 + 0.03m
H=13:G=0.15:Dia=7.9:Albedo=0.180:
Class=S:PA=17:
LPAB= 293: BPAB= -7.7

CALL target

2398 Jilin

Date range: 01/4 -13/4
Period: 3.1766 + 0.0006h
Amplitude: 0.06 + 0.04m
H=13.2:G=0.15:Dia=7.18.
Albedo=0.180: Class=S:PA=3
LPAB= 194: BPAB= 5

PSABA target

2501 Lohja

PSABA target
(to be published with other collaborators)

2709 Sagan

Date range: 30/1 -  05/2
Period: 5.259h + 0.002h
Amplitude: 0.080 + 0.005m
H=13.3: G=0.15: Dia=6.85: Albedo=0.180:
Class = S:PA=3.2,2.6
LPAB=133.4,133.6: BPAB=-3.7

PSABA target. Previous prime suspect. No attenuation detected.

691 Sersic

P1: 3.8812 + 0.0002h
POrb: 26.819 + 0.05h
Amplitude:
P1: 0.20 + 0.05m
POrb:
Prim=0.50m
Secondary=0.30m
Data range:03/06 - 26/06
H=13.4:G=0.15:Dia=6.54
Albedo=0.180:Class =S:PA=11, 21
LPAB = 237: BPAB= -5

Same field of view as 3067 Akhmatova. Binary asteroid confirmed and announced on  CBAT 2766
(to be published with other collaborators)

2870 Haupt :

Date range: 09/10 - 02/12
Period: 274 + 1h
Amplitude: 0.60m+ 0.10m
H=12.70:G=0.15:Dia=9.03:
Albedo=0.180:Class=S:PA=6.9, 22.8
LPAB=23, 31.9: BPAB=-5.8, -3.7

PSABA target. Long Period target

2731 Cucula

Date Range: 01/08 - 20/09
Period: 61.55 + 0.02h
Amplitude: 0.40m + 0.05m
H=10.70:G=0.15:Dia=39.98:
Albedo=0.058 Class=C:PA=3.3,17.4
LPAB=309: BPAB=7, 3

CALL target.

4826 Wilhelms  

Period: 54h
Amplitude: 0.90m
H=13: G=0.15: Dia=7.9
Albedo=0.180: Class=S:PA=4
LPAB=354: BPAB=-5

PSABA target.
To be published in collaboration

3067 Akhmatova

Date Range: 10/05 - 25/06
Period: 3.68610 + 0.00006h
Amplitude: 0.20  + 0.05m
H=13:G=0.15:Dia=7.9
Albedo=0.180: Class=S:PA=3.5 - 16.9
LPAB=235
BPAB=-5.4

PSABA target. Prime suspect for binary. Target is crossing fringes of milkyway. Numerous background stars cause loss of data. Instead of using Star-b-gone, those stars effected were deleted. Light curves were internally linked with CSS in Canopus.

5642 Bobbywilliams

Date range: 20/6 - 11/7
Period: 4.8341 + 0.0003h
Amplitude: 0.50 + 0.05m
H=13.5:G=0.15:Dia=6.25:Albedo=0.180: Class=S:PA=18.2, 13.0
LPAB=285
BPAB=-20.9, -16.9  

CALL Target

5701 Baltruck

Date range: 22/09 - 10/03
Period: 4.832 + 0.001h
Amplitude: 0.70 + 0.05m
H=12.7:G=0.15:Dia=12.12:Albedo=0.100: Class=SC:PA=3.5 - 16.9
LPAB=235
BPAB=-5.4

CALL target

12738 Satoshimiki  

Date range: 18/11 - 02/01
Period: 8.7081 + 0.0006h
Amplitude: 0.20 + 0.02m
H=13.4:G=0.15:Dia=6.54:Albedo=0.180: Class=S:PA=18.2, 13.5,18.2
LPAB=72.2, 78.8
BPAB=-19.8, -16.5

CALL target

7559 Kirstinemeyer

Date range: 26/09 - 20/10
Period: 5.476 + 0.003h or
Period: 10.971 + 0.008h
Amplitude: 0.05 + 0.05m
H=13.0:G=0.15:Dia=7.87:Albedo=0.180: Class=S:PA=9.8, 18.3
LPAB=355.1, 358.2
BPAB=-12.5, -11.3  

CALL Target. Low amplitude target indicated most likely a polar aspect light curve. amplitude is too low to be show a bimodal lightcurve with 10.97 h amplitude. Will require follow up observation during the next apparition

13284 1998 QG 52

Date range: 24/08 - 03/09
Period: 5.2642 + 0.0007h
Amplitude: 0.25 + 0.02m
H=13.6:G=0.15:Dia=5.97:Albedo=0.180: Class=S":PA=6.8, 4.5
LPAB=338
BPAB=8  

PSABA target

13166 1995 WU1

Date range: 24/11
Period: 3.81 + 0.04h
Amplitude: 0.20  + 0.03m
H=12.30:G=0.15:Dia=10.86:Albedo=0.180:
Class=S":PA=7:LPAB= 47: BPAB=  2

PSABA target in support for a call for binary asteroid suspect investigation.
(to be published with collaborations)

99913 1997 CZ5  

Date range:31/12 - 20/1
Period: 2.9553 + 0.0002h
P1: 2.83507 + 0.00002h
P_Orb: 14.68h
Amplitude:  0.20 + 0.02m
H=13.4: G=0.15: Dia=6.54: Albedo=0.180: Class = S:PA=9.5,12.7
LPAB= 248.7,253.9
BPAB= -15.8 , -15.2

Binary asteroid confirmed . Announcement in CBET 2648.
(to be published with collaborations)

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