1999 UP23

1999UP23, 1977 DX4, 1977DX4, 1994 RX28, 1994RX28, 41014, J77D04X, J94R28X, J99U23P

All data for this body: [vot]

MPC data
Name (number) 1999 UP23 (41014)
a 2.85272
e 0.18461
i / sin(i) 10.2639 / 0.17818
q 2.32608
Q 3.37936
ω 50.2138
Node 346.6234
m 88.4583
n 0.2046
Epoch 2460800.5
nobs 3766
nopp 22
Years observed 1977-2025
rms 0.62
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.855
ep 0.146
sin(ip) 0.188
G 0.150
H 13.820
Mass
D
pV
Value
Rotational Period 107.700
Period quality 2
Spectral Class L
Spectral Class Score 4.944
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.8551 0.1457 0.1882 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
13.82 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
107.73 2 Synodic Pal 2020ApJS..247...26P Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
L 0.824 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT