2001 HH40

2001HH40, 1999 XC197, 1999XC197, 48182, J99XJ7C, K01H40H

All data for this body: [vot]

MPC data
Name (number) 2001 HH40 (48182)
a 2.55935
e 0.06774
i / sin(i) 12.8873 / 0.22303
q 2.38599
Q 2.73271
ω 208.8743
Node 71.3740
m 246.5325
n 0.2407
Epoch 2460800.5
nobs 2443
nopp 21
Years observed 1998-2025
rms 0.75
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.561
ep 0.071
sin(ip) 0.207
G 0.150
H 14.430
Mass
D 7.89 0.093
pV 0.052 0.0098
Value
Rotational Period 4.210
Period quality 2
Spectral Class B
Spectral Class Score 0.696
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.5607 0.0706 0.2068 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
10.16 2.480 2.480 Nugent 2016AJ....152...63N NEATM
6.79 1.860 1.860 Masiero 2020PSJ.....1....5M NEATM
7.89 0.093 0.093 Masiero 2011ApJ...741...68M NEATM
8.30 2.590 2.590 Masiero 2020PSJ.....1....5M NEATM
8.60 2.480 2.480 Masiero 2012ApJ...759L...8M NEATM
9.46 3.890 3.890 Masiero 2021PSJ.....2..162M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.030 0.0200 0.0200 Nugent 2016AJ....152...63N NEATM
0.038 0.0190 0.0370 Masiero 2021PSJ.....2..162M NEATM
0.049 0.0350 0.0350 Masiero 2020PSJ.....1....5M NEATM
0.055 0.0280 0.0280 Masiero 2012ApJ...759L...8M NEATM
0.067 0.0151 0.0151 Masiero 2011ApJ...741...68M NEATM
0.073 0.0690 0.0690 Masiero 2020PSJ.....1....5M 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
14.43 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
4.214 2 Synodic Waszczak 2015AJ....150...75W Lightcurve
4.21428 2 Sidereal Durech 2023A&A...675A..24D Model
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
B 0.116 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT