1983 RB4

1983RB4, 09157, 1968 TB, 1968TB, 1987 UB7, 1987UB7, J68T00B, J83R04B, J87U07B

All data for this body: [vot]

MPC data
Name (number) 1983 RB4 (9157)
a 2.42642
e 0.21957
i / sin(i) 2.9802 / 0.05199
q 1.89364
Q 2.95919
ω 308.7658
Node 49.4181
m 359.2888
n 0.2608
Epoch 2460800.5
nobs 3701
nopp 25
Years observed 1968-2025
rms 0.69
Best values
[raw, vot]

Value Standard error
Parent Nysa (44)
 
ap 2.426
ep 0.184
sin(ip) 0.040
G 0.150
H 14.640
Mass
D
pV
Value
Rotational Period 13.390
Period quality 2
Spectral Class L
Spectral Class Score 3.834
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
135 Hertha 0 Hertha Novakovic 2019EPSC...13.1671N HCM
44 Nysa 405 Nysa-Polana 0.0500 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.4262 0.1839 0.0397 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
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
14.64 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
13.398 2 Synodic Erasmus 2020ApJS..247...13E Lightcurve
18.5948 2 Sidereal Durech 2023A&A...675A..24D Model
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
L 0.639 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT