Guangdong

02185, 1929 WE, 1929WE, 1950 HZ, 1950HZ, 1959 JU, 1959JU, 1965 WO, 1965WO, 1968 HX, 1968HX, 1969 TK3, 1969TK3, 1974 YM, 1974YM, J29W00E, J50H00Z, J59J00U, J65W00O, J68H00X, J69T03K, J74Y00M

All data for this body: [vot]

MPC data
Name (number) Guangdong (2185)
a 2.70729
e 0.16222
i / sin(i) 9.6015 / 0.16679
q 2.26812
Q 3.14646
ω 262.1289
Node 60.5318
m 206.6976
n 0.2213
Epoch 2460800.5
nobs 7465
nopp 34
Years observed 1929-2025
rms 0.53
Best values
[raw, vot]

Value Standard error
Parent Gefion (1272)
 
ap 2.709
ep 0.097
sin(ip) 0.155
G 0.150
H 11.520
Mass
D 14.67 0.744
pV 0.216 0.0294
Value
Rotational Period 21.080
Period quality 3-
Spectral Class S
Spectral Class Score 12.040
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
1272 Gefion 516 Gefion -4.8400 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7090 0.0971 0.1550 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
12.70 1.520 1.520 Usui 2011PASJ...63.1117U NEATM
13.19 2.640 2.640 Ali-Lagoa 2018A&A...612A..85A NEATM
14.84 1.090 1.090 Masiero 2012ApJ...759L...8M NEATM
17.03 1.600 1.600 Tedesco 2002AJ....123.1056T STM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.184 0.0410 0.0410 Tedesco 2002AJ....123.1056T STM
0.242 0.0450 0.0450 Masiero 2012ApJ...759L...8M NEATM
0.304 0.1220 0.1220 Ali-Lagoa 2018A&A...612A..85A NEATM
G data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.15 MPC-2023-12-94 MPC-2023-12-94 Phot
H data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
11.52 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
21.053 2 Synodic Waszczak 2015AJ....150...75W Lightcurve
21.0691 2 Synodic Pal 2020ApJS..247...26P Lightcurve
21.0774 2 Sidereal Durech 2020A&A...643A..59D Model
21.089 3- Synodic Mazzone 2014MPBu...41...17M Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
S Bus VIS Bus 2002Icar..158..146B SPEC
S 0.340 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
S 1.000000 Mahlke VIS Mahlke 2022A&A...665A..26M SPEC