Henja

10021, 1954 SH, 1954SH, 1979 QC1, 1979QC1, J54S00H, J79Q01C

All data for this body: [vot]

MPC data
Name (number) Henja (10021)
a 2.34706
e 0.17322
i / sin(i) 11.6794 / 0.20244
q 1.94051
Q 2.75362
ω 61.1264
Node 326.0848
m 212.1954
n 0.2741
Epoch 2460800.5
nobs 3971
nopp 23
Years observed 1954-2025
rms 0.62
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.347
ep 0.144
sin(ip) 0.211
G 0.150
H 14.100
Mass
D 6.91 0.195
pV 0.068 0.0109
Value
Rotational Period 3.100
Period quality 2
Spectral Class L
Spectral Class Score 3.905
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.3471 0.1440 0.2111 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.12 1.030 1.030 Nugent 2016AJ....152...63N NEATM
5.18 1.150 1.150 Nugent 2016AJ....152...63N NEATM
5.34 1.620 1.620 Masiero 2021PSJ.....2..162M NEATM
5.72 1.340 1.340 Masiero 2021PSJ.....2..162M NEATM
7.18 0.206 0.206 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.060 0.0113 0.0113 Masiero 2011ApJ...741...68M NEATM
0.140 0.0480 0.0730 Masiero 2021PSJ.....2..162M NEATM
0.150 0.0700 0.0700 Nugent 2016AJ....152...63N NEATM
0.204 0.0840 0.1430 Masiero 2021PSJ.....2..162M NEATM
0.420 0.1500 0.1500 Nugent 2016AJ....152...63N 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
14.10 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
3.11 2 Synodic Yeh 2020AJ....160...73Y Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
L L 0.6509 0.6509 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S 0.122 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT