Massachusetts

04547, 1909 BG, 1909BG, 1958 TW, 1958TW, 1960 ED, 1960ED, 1962 UF, 1962UF, 1974 TD, 1974TD, 1977 FB2, 1977FB2, 1979 UJ2, 1979UJ2, 1985 DC2, 1985DC2, 1987 SP13, 1987SP13, 1990 KP, 1990KP, J09B00G, J58T00W, J60E00D, J62U00F, J74T00D, J77F02B, J79U02J, J85D02C, J87S13P, J90K00P

All data for this body: [vot]

MPC data
Name (number) Massachusetts (4547)
a 2.61360
e 0.06789
i / sin(i) 18.0264 / 0.30946
q 2.43616
Q 2.79103
ω 38.0024
Node 358.2043
m 279.7400
n 0.2333
Epoch 2460800.5
nobs 7248
nopp 33
Years observed 1909-2025
rms 0.49
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.613
ep 0.077
sin(ip) 0.310
G 0.150
H 11.930
Mass
D 32.67 0.125
pV 0.050 0.0034
Value
Rotational Period 7.700
Period quality 3
Spectral Class C
Spectral Class Score 6.016
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.6134 0.0775 0.3097 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
21.43 6.390 6.390 Masiero 2020PSJ.....1....5M NEATM
21.85 6.570 6.570 Nugent 2016AJ....152...63N NEATM
22.08 6.530 6.530 Masiero 2020PSJ.....1....5M NEATM
24.37 2.800 2.800 Tedesco 2002AJ....123.1056T STM
24.95 6.880 6.880 Nugent 2016AJ....152...63N NEATM
25.52 0.520 0.520 Masiero 2012ApJ...759L...8M NEATM
26.05 1.726 1.726 Ryan&Woodward 2010AJ....140..933R IRAS-STM
26.30 5.260 5.260 Ali-Lagoa 2018A&A...612A..85A NEATM
27.11 7.479 7.479 Masiero 2017AJ....154..168M NEATM
28.30 8.480 8.480 Masiero 2021PSJ.....2..162M NEATM
29.25 9.545 9.545 Masiero 2017AJ....154..168M NEATM
29.70 1.790 1.790 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
30.47 9.350 9.350 Masiero 2020PSJ.....1....5M NEATM
30.67 10.490 10.490 Masiero 2021PSJ.....2..162M NEATM
31.69 0.720 0.720 Usui 2011PASJ...63.1117U NEATM
33.04 0.210 0.210 Masiero 2014ApJ...791..121M NEATM
33.40 0.169 0.169 Masiero 2011ApJ...741...68M NEATM
37.54 3.750 3.750 Ali-Lagoa 2018A&A...612A..85A NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.030 0.0060 0.0060 Ali-Lagoa 2018A&A...612A..85A NEATM
0.037 0.0260 0.0260 Masiero 2020PSJ.....1....5M NEATM
0.040 0.0077 0.0077 Masiero 2011ApJ...741...68M NEATM
0.040 0.0100 0.0100 Masiero 2014ApJ...791..121M NEATM
0.040 0.0400 0.0400 Nugent 2016AJ....152...63N NEATM
0.046 0.0220 0.0430 Masiero 2021PSJ.....2..162M NEATM
0.048 0.0294 0.0294 Masiero 2017AJ....154..168M NEATM
0.049 0.0437 0.0437 Masiero 2017AJ....154..168M NEATM
0.050 0.0200 0.0340 Masiero 2021PSJ.....2..162M NEATM
0.060 0.0300 0.0300 Nugent 2016AJ....152...63N NEATM
0.061 0.0240 0.0240 Ali-Lagoa 2018A&A...612A..85A NEATM
0.061 0.0700 0.0700 Masiero 2020PSJ.....1....5M NEATM
0.063 0.0550 0.0550 Masiero 2020PSJ.....1....5M NEATM
0.068 0.0130 0.0130 Masiero 2012ApJ...759L...8M NEATM
0.081 0.0094 0.0094 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
0.108 0.0149 0.0149 Ryan&Woodward 2010AJ....140..933R IRAS-STM
0.118 0.0320 0.0320 Tedesco 2002AJ....123.1056T 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
11.93 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
7.6896 2 Sidereal Durech 2019A&A...631A...2D Model
7.6897 2 Sidereal Durech 2023A&A...675A..24D Model
7.703 3 Synodic Warner 2006MPBu...33...58W Lightcurve
7.75 3- Synodic Behrend LCDB Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
C 0.211 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
C 0.950000 Mahlke VIS Mahlke 2022A&A...665A..26M SPEC
X Bus VIS Bus 2002Icar..158..146B SPEC