1998 SR61

1998SR61, 1999 XY175, 1999XY175, 44385, J98S61R, J99XH5Y

All data for this body: [vot]

MPC data
Name (number) 1998 SR61 (44385)
a 2.78506
e 0.04102
i / sin(i) 11.2335 / 0.19481
q 2.67082
Q 2.89930
ω 122.7645
Node 336.7447
m 176.2467
n 0.2121
Epoch 2460800.5
nobs 2143
nopp 20
Years observed 1998-2025
rms 0.72
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.784
ep 0.061
sin(ip) 0.204
G 0.150
H 14.120
Mass
D 4.72 0.097
pV 0.271 0.0176
Value
Rotational Period 27.100
Period quality 2
Spectral Class L
Spectral Class Score 5.406
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7845 0.0610 0.2040 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
4.68 0.108 0.108 Masiero 2011ApJ...741...68M NEATM
4.87 0.216 0.216 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.270 0.0182 0.0182 Masiero 2011ApJ...741...68M NEATM
0.292 0.0692 0.0692 Masiero 2011ApJ...741...68M 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
14.12 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
27.11 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 0.901 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT