1998 HT36

1998HT36, 1999 SQ18, 1999SQ18, 39990, J98H36T, J99S18Q

All data for this body: [vot]

MPC data
Name (number) 1998 HT36 (39990)
a 2.44753
e 0.06175
i / sin(i) 8.8852 / 0.15446
q 2.29641
Q 2.59866
ω 242.4920
Node 26.6065
m 321.5844
n 0.2574
Epoch 2460800.5
nobs 1892
nopp 19
Years observed 1998-2025
rms 0.75
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.448
ep 0.064
sin(ip) 0.148
G 0.150
H 15.360
Mass
D
pV
Value
Rotational Period 35.496
Period quality 2
Spectral Class C
Spectral Class Score 2.000
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.4477 0.0643 0.1482 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
15.36 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
35.4961 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
C DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
CX 0.42 Bus VIS Carvano 2010A&A...510A..43C PHOT
S S 0.2579 0.2210 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT