(1830) Pogson
compiled by Wm. Robert Johnston
last updated 28 August 2007
Orbital elements and other data (Assumed or derived values in parenthesis, my estimates in italics and parenthesis. Source identifications in brackets, see this link for sources):
orbital data, primary (osculating elements) [JPL]:
|
semimajor axis a: |
2.1884493 AU
| |
orbital period P: |
3.24 y (=1,182.505 d)
| |
eccentricity e: |
0.0558781
| |
perihelion distance q: |
2.0661629 AU
| |
aphelion distance Q: |
2.3107357 AU
| |
inclination i: |
3.9525°
| |
argument of perihelion omega: |
335.30448°
| |
ascending node OMEGA: |
147.56709°
| |
mean anomaly M: |
83.00196°
| |
perihelion passage TP: |
2006-11-11.36
| |
Epoch: |
10 APR 2007
| |
data arc: |
1929-2005 (498 obs.)
|
orbital data, secondary:
|
semimajor axis a: |
(25 km?)
| |
semimajor axis/primary radius a/Rp: |
(5?)
| |
orbital period P: |
24.240 ± 0.005 h [OOf]
| |
eccentricity e: |
?
| |
other data, primary:
|
diameter: |
(~10 km?)
| |
absolute magnitude H: |
12.45 [JPL]
| |
rotation period: |
2.56978 ± 0.0001 h [OOf]
| |
amplitude delta M: |
0.12 [OOf]
| |
color index U-B: |
0.500 ± 0.045 [JPL]
| |
color index B-V: |
0.91 ± 0.02 [JPL]
| |
color index V-R: |
?
| |
color index R-I: |
?
| |
slope parameter G: |
?
| |
geometric albedo: |
?
| |
mass: |
?
| |
density: |
?
| |
type: |
S [JPL]
|
other data, secondary:
|
diameter: |
(~3 km?)
| |
diameter ratio Ds/Dp: |
>0.32 [C957]
| |
component magnitude difference: |
(2.5)
| |
rotation period: |
?
|
|
--(1830) Pogson--discovery and notes:
Primary discovered 17 April 1968 by P. Wild at Zimmerwald. Alternate designations 1968 HA, 1926 GW, 1929 EE, 1942 EC1, 1945 BB, 1953 RE1, 1955 FX, 1955 GE, 1961 AC, 1969 QM, 1971 BJ, 1972 NA1, 1972 OC, 1972 OD.
Companion reported 10 May 2007 based on lightcurve observations from 18 April-9 May 2007 from Ondrejov Observatory, Hunters Hill Observatory, Leura Observatory, and Carbuncle Hill Observatory.
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
- Bus, S. & Binzel, R. P. 2004, NASA Planetary Data System, EAR-A-I0028-4-SBN0001/SMASSII-V1.0:1830POGSON01 1830 Pogson CCD Spectrum
© 2007 by Wm. Robert Johnston.
Last modified 28 August 2007.
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