Watanabe

04155, 1977 AO1, 1977AO1, 1983 RT5, 1983RT5, 1987 UB1, 1987UB1, J77A01O, J83R05T, J87U01B

All data for this body: [vot]

MPC data
Name (number) Watanabe (4155)
a 2.43277
e 0.24176
i / sin(i) 6.0157 / 0.10480
q 1.84463
Q 3.02091
ω 355.5813
Node 17.5219
m 331.7529
n 0.2597
Epoch 2460800.5
nobs 6779
nopp 28
Years observed 1977-2025
rms 0.55
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.433
ep 0.208
sin(ip) 0.096
G 0.150
H 13.410
Mass
D 6.02 0.150
pV 0.280 0.0470
Value
Rotational Period 4.497
Period quality 3
Spectral Class L
Spectral Class Score 0.954
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.4327 0.2079 0.0960 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
6.02 0.150 0.150 Masiero 2012ApJ...759L...8M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.280 0.0470 0.0470 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
13.41 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
4.495 3- Synodic Farfan 2022MPBu...49..136F Lightcurve
4.4972 3 Synodic Pravec LCDB Lightcurve
6.8 2 Synodic Behrend LCDB Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
L 0.159 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT