Roerich

04426, 1936 LD, 1936LD, 1969 TB6, 1969TB6, 1972 GF, 1972GF, 1974 VB1, 1974VB1, 1978 RW4, 1978RW4, 1978 TK3, 1978TK3, 1979 YM7, 1979YM7, 1981 GV, 1981GV, 1986 LP1, 1986LP1, 1987 SP, 1987SP, J36L00D, J69T06B, J72G00F, J74V01B, J78R04W, J78T03K, J79Y07M, J81G00V, J86L01P, J87S00P

All data for this body: [vot]

MPC data
Name (number) Roerich (4426)
a 2.75587
e 0.06613
i / sin(i) 2.0933 / 0.03653
q 2.57361
Q 2.93813
ω 57.1782
Node 236.9273
m 138.7330
n 0.2154
Epoch 2460800.5
nobs 5865
nopp 36
Years observed 1936-2025
rms 0.60
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.753
ep 0.068
sin(ip) 0.047
G 0.150
H 12.310
Mass
D 10.97 0.048
pV 0.193 0.0158
Value
Rotational Period 8.149
Period quality 2
Spectral Class L
Spectral Class Score 9.651
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7526 0.0676 0.0467 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
10.64 0.110 0.110 Masiero 2014ApJ...791..121M NEATM
10.85 0.520 0.520 Masiero 2012ApJ...759L...8M NEATM
11.05 0.054 0.054 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.175 0.0319 0.0319 Masiero 2011ApJ...741...68M NEATM
0.190 0.0200 0.0200 Masiero 2014ApJ...791..121M NEATM
0.238 0.0440 0.0440 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
12.31 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
8.1495 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 Bus VIS Bus 2002Icar..158..146B SPEC
L 0.577 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
L L 0.1982 0.1980 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
M L 0.430000 0.310000 Mahlke VISNIR Mahlke 2022A&A...665A..26M SPEC