Tianjin

02209, 1927 CC, 1927CC, 1935 WC, 1935WC, 1942 EN1, 1942EN1, 1952 HR2, 1952HR2, 1957 JO, 1957JO, 1959 UP, 1959UP, 1966 GA, 1966GA, 1971 FW, 1971FW, 1971 JB, 1971JB, 1973 QU, 1973QU, 1973 SW2, 1973SW2, 1973 UT3, 1973UT3, 1976 GP7, 1976GP7, 1976 KB, 1976KB, 1978 US1, 1978US1, J27C00C, J35W00C, J42E01N, J52H02R, J57J00O, J59U00P, J66G00A, J71F00W, J71J00B, J73Q00U, J73S02W, J73U03T, J76G07P, J76K00B, J78U01S

All data for this body: [vot]

MPC data
Name (number) Tianjin (2209)
a 2.84669
e 0.06361
i / sin(i) 2.6190 / 0.04569
q 2.66561
Q 3.02777
ω 262.9723
Node 150.7764
m 108.4143
n 0.2052
Epoch 2460200.5
nobs 7035
nopp 41
Years observed 1942-2023
rms 0.39
Best values
[raw, vot]

Value Standard error
Parent Koronis (158)
 
ap 2.846
ep 0.049
sin(ip) 0.038
Value Standard error
G 0.150
H 11.410
Mass
D 16.88 0.101
pV 0.279 0.0169
Rotational Period 9.470
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
158 Koronis 605 Koronis -0.8100 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.8465 0.0485 0.0378 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Oct-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
14.09 1.560 1.560 Masiero 2012ApJ...759L...8M NEATM
15.57 1.080 1.080 Usui 2011PASJ...63.1117U NEATM
16.08 3.220 3.220 Ali-Lagoa 2018A&A...612A..85A NEATM
16.44 1.200 1.200 Tedesco 2002AJ....123.1056T STM
16.79 0.280 0.280 Masiero 2014ApJ...791..121M NEATM
16.92 0.110 0.110 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.262 0.1050 0.1050 Ali-Lagoa 2018A&A...612A..85A NEATM
0.270 0.0600 0.0600 Masiero 2014ApJ...791..121M NEATM
0.271 0.0203 0.0203 Masiero 2011ApJ...741...68M NEATM
0.285 0.0490 0.0490 Tedesco 2002AJ....123.1056T STM
0.354 0.0590 0.0590 Masiero 2012ApJ...759L...8M 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
11.41 MPC-2023-12-04 MPC-2023-12-04 Phot
Period data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
9.44 Behrend LCDB Lightcurve
9.45 Durech 2019A&A...631A...2D Model
9.45 Erasmus 2020ApJS..247...13E Lightcurve
9.47 Florczak 1997P&SS...45.1423F Lightcurve