1. SCT 0.25m f/11 , CCD Camera ST9XE and 0.12m guidescope with ST402ME as
autoguider; 1.45 arcsec/pixel(bin1x1); FOV: 12X12 arcmin E19
2. SCT 0.35m f/7 (lumicon GEG focal reducer) , CCD camera ST8XME; 0.77
arcsec/pixel(bin1x1), 1.54 arcsec/pixel(bin2x2);FOV:13.1X19.6 arcmin E17
Brackets next to "Date Range" indicate the location and system used. An
asterisk (*) after the name indicate published light curve in Minor Planet
Bulletin.
| 310 Margarita* |
 |
Date range:09/03 -15/04 (1) Period:12.07000h
+ 0.00002h
Amplitude:0.16m + 0.01m |
H=10.30: G=0.15: Dia=36.6: Albedo=0.100: Class = SC
PA=13.4,1.1,3.8
LPAB=196,197.6: BPAB=-2.6,-2.1 |
Observation was done in collaboration with Frederick
Pilcher in USA. Period was commensurate to earth rotation period.
Resultant combined data taken from different geographic longitude will
confirm the period. F. Pilcher publish paper in MPB Volume 37 issue 4. |
| 1194 Alleta* |
 |
Date range: 08/03 - 19/03 (1) Period:20.390h +
0.007h
Amplitude:0.28m + 0.03m |
H=10.2: G=0.15: Dia=50.33: Albedo=0.058: Class = C
PA=5.4,6.8
LPAB=168.9,169.1: BPAB=-11.8,-12.1
|
CALL target. Previous result by Brinsfield was 19.8h +/- 0.1h |
| 1685 Toro* |
 |
Date range:20/04 - 10/05(1) Period: 10.203h +
0.003h
Amplitude: 0.6m + 0.1m |
H=14.23: G=0.15: Dia=4.47: Albedo=0.180: Class = S
PA=12.0,7.6,9.0
LPAB=223.4,221.6: BPAB=-11.5,-10.9 |
CALL target |
| 2501 Lohja* |
 |
Date range: 08/06 - 08/08(2) Period: 3.80886h +
0.00002h
Amplitude: 0.25m + 0.01m |
H=12.08: G=0.15: Dia=12.02: Albedo=0.180: Class = S
PA=7.6,28.3
LPAB=246.7,259.6: BPAB=-4.3,-4 |
PSABA target for binary asteroid prime suspect. D.
Higgins published in MPB volume 38 issue 1. |
| 2121 Sevastopol |
 |
Data Range: 15/08 - 16/09 P1: 2.74h + 0.01h
P_Orb : 37.1h + 0.1h
Amplitude: 0.20m + 0.03m |
H=12.3: G=0.15: Dia=10.86: Albedo=0.180: Class = S
PA=23.6,6.8
LPAB=357.4,1.7: BPAB=-2.1,-3.6 |
PSABA binary asteroid. Recently discovered by David Higgins.
Announcement in CBET 2427 |
| 2897 OleRomer* |
 |
Date range: 06/05 - 10/06(2) Period:2.6004h +
0.0002h
Amplitude: 0.07m + 0.02m |
H=13.4: G=0.15: Dia=6.54: Albedo=0.180: Class = S
PA=7.5,0.8,11.1
LPAB=238.1,239.1: BPAB=-0.8,-2.2
|
PSABA target for asteroid pair. |
| 3704 Gaoshiqi |
 |
Date range: 15/07 - 01/09(2) Period: 9.7730 +
0.0004h
Amplitude : 0.20m + 0.05m |
H=12.5: G=0.15: Dia=9.91: Albedo=0.180: Class = S
PA=9.9,4.4, 14.7
LPAB=308.7,310.7: BPAB=7.5,7.9, 7.8 |
PSABA target. Initial data taken over 1 month indicated a bimodal
light curve but showing considerable amount of dispersion. The
deviations are not resolvable at the current available data sets. Future
observations will be needed for clarification. 2 final data sets were
provided by Joe Pollock confirming the 9.77h period. |
| 3868 Mendoza |
 |
Date range: 10/09 - 12/11 Period: 3.0884h +
0.0002h
Amplitude: 0.10m + 0.03m |
H=13: G=0.15: Dia=7.87: Albedo=0.180: Class = S
PA=17.1,3.2, 16.4
LPAB=16.4,20.7: BPAB=-3.1,-6.6 |
PSABA target. Follow up on subsequent apparition since the discovery
apparition last year. |
| 4283 Stoffler* |
 |
Date range:08/03 - 25/03 (1) Period: 154.0h +
1.0h
Amplitude:0.8m + 0.1m |
H=12.6: G=0.15: Dia=9.46: Albedo=0.180: Class = S
PA=8.1,14
LPAB=167.3,167.9: BPAB=-12.5,-15.6 |
CALL Target. Different sessions are internally linked. |
| 6961 Ashitaka* |
 |
Date range:15/03 - 14/04 (1) Period:3.1461h +
0.0002h
Amplitude:0.15m + 0.02m |
H=13.4: G=0.15: Dia=6.54: Albedo=0.180: Class = S
PA=15.8,2.1, 2.8
LPAB=197.7, 201: BPAB=-4, -2.8 |
CALL Target |
| 10357 1993 SL3* |
 |
Data Range : 11/09 - 17/09 Period: 2.763h
+ 0.003h Amplitude: <0.05m |
H=12.7: G=0.15: Dia=9.03: Albedo=0.180: Class = S
PA=12
LPAB=353: BPAB=-16 |
CALL target. Period is not reliable and could be a long period
object but not sufficient data for complete derivation of its period. |
| 14133 1998 RJ17* |
 |
Data range:
31/12/10 - 29/01/11 Period: 5.24008h + 0.00007h Amplitude: 1.15m
+ 0.02m |
H=14.2: G=0.15: Dia=4.53: Albedo=0.180: Class = S
PA=13.1, 9.7, 12.6
LPAB=111.8,114.5: BPAB=-15, -13.5 |
PSABA target |
| 15430 1998 UR31 |
 |
Data range: 22/04 - 15/05(2) Period_1: 2.5272h +
0.0002h
Amplitude: 0.10m + 0.05m
Period_2: 11.980h + 0.004h
|
H=13.8: G=0.15: Dia=5.44: Albedo=0.180: Class=S
PA=6.9,37, 9.7
LPAB=219.1: BPAB=5.7 |
PSABA target. Primary rotation period is obtained however the
dispersion apparent in the lightcurve is not clearly understood at this
stage. Causes ranging from instrumental faults to true nature of the
asteroid has yet to be confirmed. I have exhausted all efforts in
eliminating causes internally within software reduction. My next attempt
is to try other targets with similar physical characteristic and
see for any similar peculiarities. Previous work has not shown such
curves. If correct, the observed light curve consistent with a Porb of
about 12h and P_2 of about the same. However confirmation of such period
characteristic require coordinated approach from other observers at
other longitudes. |
| 29729 1999 BY1 |
 |
Date range: 01/09-03/09 (1) Amplitude: 0.70m +
0.05m
Period: 4.5279h + 0.0001h |
H= 13.4: G=0.15:Dia=6.54: Albedo=0.180 Class =S:
PA=5.6, 28.0
LPAB=110.4, 116.9
BPAB=-8.3,0,5.6 |
PSABA target worked together with David Higgins from
Hunter hills Observatory. |
| 131702 2001 YZ3* |
 |
Date range: 09/01 - 22/01(1) Amplitude: 0.10m +
0.05m
Period: 4.92h + 0.01h
|
H=14.4: G=0.15: Dia=4.13: Albedo=0.180:Class=S PA=20
LPAB=126: BPAB= -14, -22 |
Asteroid is in the same field as 29729 1999 BY1. Data
was reduced with CSS method in Canopus V10 |
| 15700 1987 QD |
 |
Date range: 25/09 - 27/09 Period: 3.063h +
0.005h
Amplitude: 0.10m + 0.05m |
H=14.4: G=0.15: Dia=4.13: Albedo=0.180: Class = S
PA=12
LPAB=347: BPAB=1
|
PSABA target. Binary Asteroid candidate was not confirmed due to
contradictory results. 2 possible binary orbital periods are 50h and
63h. Result published in CBET 2540 |
