McEwen

07750, 1951 LO, 1951LO, 1988 QD1, 1988QD1, J51L00O, J88Q01D

All data for this body: [vot]

MPC data
Name (number) McEwen (7750)
a 2.76168
e 0.37448
i / sin(i) 15.8526 / 0.27316
q 1.72750
Q 3.79586
ω 69.6078
Node 249.2709
m 2.2841
n 0.2148
Epoch 2460800.5
nobs 3192
nopp 27
Years observed 1951-2025
rms 0.66
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.765
ep 0.301
sin(ip) 0.318
G 0.150
H 13.210
Mass
D 14.32 0.156
pV 0.071 0.0029
Value
Rotational Period 27.818
Period quality 3
Spectral Class C
Spectral Class Score 2.945
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7650 0.3015 0.3177 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
11.15 3.325 3.325 Masiero 2017AJ....154..168M NEATM
11.59 3.730 3.730 Nugent 2016AJ....152...63N NEATM
12.15 2.590 2.590 Masiero 2021PSJ.....2..162M NEATM
12.47 1.100 1.100 Tedesco 2002AJ....123.1056T STM
14.00 nan nan Ali-Lagoa 2016A&A...591A..14A NEATM
14.00 nan nan Ali-Lagoa 2016A&A...591A..14A NEATM
14.24 0.216 0.216 Masiero 2011ApJ...741...68M NEATM
14.41 0.260 0.260 Usui 2011PASJ...63.1117U NEATM
14.95 1.500 1.500 Ali-Lagoa 2018A&A...612A..85A NEATM
17.58 0.725 0.725 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
9.50 1.141 1.141 Ryan&Woodward 2010AJ....140..933R IRAS-STM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.051 0.0100 0.0100 Ali-Lagoa 2018A&A...612A..85A NEATM
0.052 0.0044 0.0044 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
0.060 0.1500 0.1500 Nugent 2016AJ....152...63N NEATM
0.060 0.0052 0.0052 Masiero 2011ApJ...741...68M NEATM
0.072 0.0270 0.0420 Masiero 2021PSJ.....2..162M NEATM
0.090 0.0492 0.0492 Masiero 2017AJ....154..168M NEATM
0.104 0.0200 0.0200 Tedesco 2002AJ....123.1056T STM
0.178 0.0086 0.0086 Ryan&Woodward 2010AJ....140..933R IRAS-STM
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
13.21 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
27.8 3 Synodic Ferrero 2012MPBu...39...65F Lightcurve
27.807 3- Synodic Skiff LCDB Lightcurve
27.8124 3 Synodic Clark 2012MPBu...39...63C Lightcurve
27.8182 3 Synodic Owings 2012MPBu...39...22O Lightcurve
27.82 2+ Synodic Li 2013MPBu...40...62L Lightcurve
27.8342 2 Synodic Pal 2020ApJS..247...26P Lightcurve
27.843 2+ Synodic Skiff 2023MPBu...50...74S Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
C C 0.4708 0.4708 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C 0.06 Bus VIS Carvano 2010A&A...510A..43C PHOT
S DeMeo-Carry VIS Choi 2023PSJ.....4...49C PHOT