Keck

05811, 1972 XU1, 1972XU1, 1976 UX2, 1976UX2, 1988 KC, 1988KC, J72X01U, J76U02X, J88K00C

All data for this body: [vot]

MPC data
Name (number) Keck (5811)
a 2.59965
e 0.30218
i / sin(i) 10.3096 / 0.17897
q 1.81408
Q 3.38521
ω 96.9059
Node 227.2302
m 248.8180
n 0.2351
Epoch 2460800.5
nobs 4027
nopp 30
Years observed 1951-2025
rms 0.68
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.600
ep 0.254
sin(ip) 0.209
G 0.150
H 12.980
Mass
D
pV
Value
Rotational Period 30.000
Period quality 2
Spectral Class S
Spectral Class Score 9.383
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.5996 0.2544 0.2093 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
12.98 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
30.0 2 Synodic Behrend LCDB Lightcurve
87.327 2 Sidereal Durech 2019A&A...631A...2D Model
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
S DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
S None Bus VIS Carvano 2010A&A...510A..43C PHOT
S Kl None None Movis NIR Popescu 2018A&A...617A..12P PHOT
S S 0.7305 0.4100 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT