Mellena

00869, 1917 JB, 1917JB, 1931 RC, 1931RC, 1944 OB, 1944OB, 1952 DL2, 1952DL2, J17J00B, J31R00C, J44O00B, J52D02L

All data for this body: [vot]

MPC data
Name (number) Mellena (869)
a 2.69065
e 0.21857
i / sin(i) 7.8367 / 0.13635
q 2.10256
Q 3.27874
ω 107.1713
Node 154.8456
m 132.4505
n 0.2233
Epoch 2460800.5
nobs 9052
nopp 45
Years observed 1930-2025
rms 0.47
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.692
ep 0.230
sin(ip) 0.132
G 0.150
H 12.070
Mass
D 21.06 0.074
pV 0.043 0.0016
Value
Rotational Period 6.515
Period quality 3
Spectral Class C
Spectral Class Score 18.430
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.6920 0.2299 0.1323 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
12.59 2.990 2.990 Masiero 2021PSJ.....2..162M NEATM
14.90 0.858 0.858 Ryan&Woodward 2010AJ....140..933R IRAS-STM
15.14 4.590 4.590 Nugent 2016AJ....152...63N NEATM
15.23 3.470 3.470 Nugent 2016AJ....152...63N NEATM
15.76 4.420 4.420 Masiero 2021PSJ.....2..162M NEATM
17.77 0.460 0.460 Masiero 2012ApJ...759L...8M NEATM
18.45 0.320 0.320 Usui 2011PASJ...63.1117U NEATM
18.52 0.800 0.800 Tedesco 2002AJ....123.1056T STM
18.81 1.880 1.880 Ali-Lagoa 2018A&A...612A..85A NEATM
19.62 1.960 1.960 Ali-Lagoa 2018A&A...612A..85A NEATM
21.19 0.090 0.090 Masiero 2014ApJ...791..121M NEATM
21.95 0.153 0.153 Masiero 2011ApJ...741...68M NEATM
23.07 1.234 1.234 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.036 0.0040 0.0040 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
0.038 0.0020 0.0020 Masiero 2011ApJ...741...68M NEATM
0.057 0.0050 0.0050 Tedesco 2002AJ....123.1056T STM
0.060 0.0200 0.0200 Masiero 2014ApJ...791..121M NEATM
0.065 0.0090 0.0090 Masiero 2012ApJ...759L...8M NEATM
0.088 0.0103 0.0103 Ryan&Woodward 2010AJ....140..933R IRAS-STM
0.092 0.0180 0.0180 Ali-Lagoa 2018A&A...612A..85A NEATM
0.100 0.0200 0.0200 Ali-Lagoa 2018A&A...612A..85A NEATM
0.100 0.0700 0.0700 Nugent 2016AJ....152...63N NEATM
0.112 0.0410 0.0630 Masiero 2021PSJ.....2..162M NEATM
0.120 0.1700 0.1700 Nugent 2016AJ....152...63N NEATM
0.124 0.0490 0.0820 Masiero 2021PSJ.....2..162M 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
12.07 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
11.8 1+ Synodic Saylor 2012JSARA...5...25S Lightcurve
6.51 2 Synodic Ferrero LCDB Lightcurve
6.51 3 Synodic Owings 2011MPBu...38....9O Lightcurve
6.51414 2 Sidereal Durech 2023A&A...675A..24D Model
6.51432 2 Sidereal Durech 2020A&A...643A..59D Model
6.515 3- Synodic Carbognani 2011MPBu...38...57C Lightcurve
6.5155 3 Synodic Stephens 2010MPBu...37..159S Lightcurve
6.528 2+ Synodic Franco 2020MPBu...47...61F Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
A Howell VISNIR Howell 1994JGR....9910847H PHOT
B 0.418 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
B X 0.2657 0.1640 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C Bus VIS Lazzaro 2004Icar..172..179L SPEC
C DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
C Tholen VIS Lazzaro 2004Icar..172..179L SPEC
C 0.910000 Mahlke VIS Mahlke 2022A&A...665A..26M SPEC
C 0.94 Bus VIS Carvano 2010A&A...510A..43C PHOT
X X 0.1045 0.1640 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
X X 0.3650 0.1640 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT