1991 ES1

1991ES1, 07875, 1976 SL8, 1976SL8, 1993 PM4, 1993PM4, J76S08L, J91E01S, J93P04M

All data for this body: [vot]

MPC data
Name (number) 1991 ES1 (7875)
a 2.64279
e 0.18173
i / sin(i) 14.1316 / 0.24415
q 2.16251
Q 3.12307
ω 264.7459
Node 165.2885
m 56.4123
n 0.2294
Epoch 2460800.5
nobs 4805
nopp 27
Years observed 1976-2025
rms 0.68
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.643
ep 0.169
sin(ip) 0.247
G 0.150
H 12.390
Mass
D 14.80 0.078
pV 0.084 0.0066
Value
Rotational Period 20.040
Period quality 2
Spectral Class Cgx
Spectral Class Score 1.000
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.6435 0.1687 0.2470 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
12.65 2.750 2.750 Nugent 2016AJ....152...63N NEATM
13.19 3.430 3.430 Masiero 2021PSJ.....2..162M NEATM
14.56 3.590 3.590 Masiero 2021PSJ.....2..162M NEATM
14.61 0.082 0.082 Masiero 2011ApJ...741...68M NEATM
15.04 4.047 4.047 Masiero 2017AJ....154..168M NEATM
15.44 1.540 1.540 Ali-Lagoa 2018A&A...612A..85A NEATM
15.95 0.450 0.450 Usui 2011PASJ...63.1117U NEATM
17.02 3.400 3.400 Ali-Lagoa 2018A&A...612A..85A NEATM
17.06 0.320 0.320 Masiero 2012ApJ...759L...8M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.077 0.0310 0.0310 Ali-Lagoa 2018A&A...612A..85A NEATM
0.080 0.0080 0.0080 Masiero 2012ApJ...759L...8M NEATM
0.083 0.0394 0.0394 Masiero 2017AJ....154..168M NEATM
0.092 0.0420 0.0770 Masiero 2021PSJ.....2..162M NEATM
0.093 0.0190 0.0190 Ali-Lagoa 2018A&A...612A..85A NEATM
0.094 0.0340 0.0530 Masiero 2021PSJ.....2..162M NEATM
0.100 0.0232 0.0232 Masiero 2011ApJ...741...68M NEATM
0.110 0.0600 0.0600 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
12.39 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
20.046 2 Synodic Waszczak 2015AJ....150...75W Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
Cgx Cgx None None Movis NIR Popescu 2018A&A...617A..12P PHOT