2017 - Minor Planet Photometry

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Obs Code





Time (UT)



150d 20' 30"

-33d 42' 22"



Telescope codeTelescope Mount f ratio focuser Camera "/pixobservatory

SCT 0.35m

Paramount MX






B14EdgeSCT 0.35m Paramount MX+ 11 Optec fast focus U6M 1.28Q68
CDK 0.61m
MI-1250 Fork
6.8 Planewave U42 0.70Q68
P12 GroomSCT 0.35m Paramount ME

P14 POSCT 0.35 Paramount ME

JBL02RCOS 0.32 Paramount MX+
Robofocus STL 11000 1.28
JBL01RCOS 0.40 Paramount ME
Robofocus STL 11000 1.07
393 Lampetia

Collaboration with Frederick Pilcher and Anna Marciniak to arrive a period of 38.455h.
Data published .
1401 Lavonne

PSABA target
1829 Dawson

PSABA target

33 Data points
2016 UU80

NEA fast rotation
126 data points
2017 BY93

Fast rotator and a tumbler.
NEA Apollo
2859 Paganini

PSABA target.
the last night was linked using same comparison stars since 2859 was in a stationaly position as viewed from earth.
it confirm the low amplitude nature and longish period of 32.4h

3892 Deszo

Probable binary target for PSABA target.
4718 Araki

PSABA target
4058 Cecilgreen

Target of opportunity in the same fov as 24410 on 23/04/17
4750 Mukai

PSABA target
Long period but showing signs of tumbling at 38.3h
4760 Jia-Xiang

PSABA target.
initially target appear to have synch binary characteristic however after more data was collected, it appear to be a large amplitude asteroid.
telescope used.. JBL02 and DRO
5859 Ostozhenka

PSABA target
very low amplitude target .
shown the period spectrum for 6.89h
5859 Ostozhenka

Asteroid happened to be in the stationary movement in the sky allowing 6 nights linkages using same comparison stars. This method is very reliable and allowing accurate links to 0.01 magnitude over many nights. Giving a good light curve determination even with a low amplitude problem as in this case.
5887 Yauza

PSABA target

This asteroid show a long period bimodal light curve.
will continue to observe.
Data obtained from BMO 14Edge
6199 Yoshiokayayoi

CALL target . favourable apparition . full moon target to start of .
6707 Shigeru

PSABA target

7341 1991 VK

NEA Apollo, previous work Warner 2009, Pravec 1998, 4.2096h
Early November 2016  post-opposition at PA = 51.3
34 Data points
7341 1991 VK

Late November-December 2016 post-opposition.

33 Data points
7341 1991 VK

Early February 2017 post opposition PA=108.3

288 Data points
7341 1991 VK

Late February 2017 post opposition at PA=61.4

210 Data points
7341 1991 VK

March 2017 post opposition at PA=38.5

108 Data points
HG plot for 7341 1991 VX

7368 Haldancohn

PSABA target
7368 Haldancohn

PSABA target from DRO
9671 Hemera

Observation started by Alessandro Marchini et al. from Italy and analysed by Petr Pravec  shown that the light curve is double periodic indicating a probable binary scenario.
BMO _ JBL02 intend to observe the target until events found.
13958 1991 DY

Target of opportunity in the same Fov as 6097 Koishikawa
(14950) 1996 BE2

PSABA target

(14950) 1996 BE2

Data collected for the month of June. Amplitude is larger due to the usual Phase-Amplitude relation ship

(15590) 2000 GH82

PSABA target 3 multiple coverage to arrive at a period of 3.7901h

24410 Juliewalker

PSABA target
(27005) 1998 DR35

PSABA target
31170 1997 WO58

PSABA target
This one turned out to be a tough target. It was not such long period as I
thought it might have been originally and the poor weather condition here meant I
couldn't get long sessions .
The Jan and Feb data pointed to a shorter 13.7h period and
0.3mag amplitude. However I have to adjust 12/09 and 01/20 by as much a
0.5mag. which I concluded to be stray . Once adjusted, the curve fit well into the 13.7h light curve

94346 2001 QU88

PSABA target
54355 2000 KJ33

PSABA target
92545 2000 OV30

Object of opportunity within the same fov as 6707 Shigeru.
68 Data points
138846 2000 VJ61

Taken from JBL02.
NEA Apollo type.

27005 1998 DR35

PSABA target
2015/mm/ddPA LPAB BPAB Period PE Amplitude AE H Diameter Telescope

31170 1997 WO58

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