C/1932 M1

Solar System
Dynamics &
Planetology
Group

C/1932 M1 Newman

General description

Comet C/1932 M1 was discovered on 20 June 1932, about three months before perihelion passage, and was last seen on 20 January 1933 [Kronk, Cometography: Volume 3]. Soon the prediscovery images on plates exposed on 1 June (Lowell Observatory, Arizona, USA) were found.

This comet made its closest approach to the Earth on 10 June 1932 (1.214 au), that is ten days before its discovery.

Solution given below is based on data span over 0.584 yr in a range of heliocentric distances from 2.06 au through perihelion (1.65 au) to 2.25 au.

Comet suffered small planetary perturbations during its passage through the planetary system, however they led to escape the comet from the planetary zone on a hiperbolic orbit (see future barycentric orbit given below).

More details in Królikowska et al. 2014

Figure caption: Time distribution of positional observations with corresponding heliocentric (red curve) and geocentric (green curve) distance at which they were taken. The horizontal dotted line shows the perihelion distance for a given comet whereas vertical dotted line — the moment of perihelion passage.

SSDP Cometary Note C1932M1A5-001

Comet C/1932 M1 Newman

number of observations	188
number of residuals	325
data interval	1932 June 21 — 1933 Jan. 20
rms [arcsec]	2.60
orbit quality class	1b

Osculating orbital elements (heliocentric; ecliptic J2000.0)

Epoch (TT)	19320910.0	= JD 2426960.5
time of perihelion passage (TT)	19320924.551075	± 0.000982
perihelion distance	1.64736493	± 0.00001195
eccentricity	1.00046840	± 0.00003229
argument of perihelion [deg]	69.787385	± 0.000647
longitude of the ascending node [deg]	246.090506	± 0.000230
inclination [deg]	78.388394	± 0.000200
inverse semimajor axis [10^-6 au^-1]	-284.33	± 19.60

Note: Epoch is given in a format: yyyymmdd.d, time of perihelion passage in a format of yyyymmdd.dddddd.

Figure caption: Six 2D-projections of the 6D space of original swarm (5001 VCs) of C/1932 M1. Each density map is given in logarithmic scale presented on the right in the individual panel.
The same figure in the new window

Original orbital elements (barycentric; at 250 au from the Sun)

Epoch (TT)	16330301
time of perihelion passage (TT)	19320923.758305	± 0.001011
perihelion distance	1.64447847	± 0.00001183
eccentricity	0.99996018	± 0.00003190
argument of perihelion [deg]	69.867810	± 0.000641
longitude of the ascending node [deg]	246.157067	± 0.000228
inclination [deg]	78.369050	± 0.000199
inverse semimajor axis [10^-6 au^-1]	24.21	± 19.40

Note: Values of uncertainties of original/future orbital elements were derived using a swarm of 5001 osculating orbits of VCs (including the nominal osculating orbit given above) for original/future orbital evolution calclulations and then by fitting the distribution of a given orbital element of original/future swarm of VCs to Gaussian distribution.

Original barycentric positions and velocities of 5001 VCs at 250 au from the Sun are given here (data format), i.e. before entering the planetary zone.

Figure caption: Six 2D-projections of the 6D space of future swarm (5001 VCs) of C/1932 M1. Each density map is given in logarithmic scale presented on the right in the individual panel.
The same figure in the new window

Future orbital elements (barycentric; at 250 au from the Sun)

Epoch (TT)	22290406
time of perihelion passage (TT)	19320924.831765	± 0.001018
perihelion distance	1.64649976	± 0.00001202
eccentricity	1.00040467	± 0.00003194
argument of perihelion [deg]	69.763011	± 0.000641
longitude of the ascending node [deg]	246.059025	± 0.000225
inclination [deg]	78.330249	± 0.000200
inverse semimajor axis [10^-6 au^-1]	-245.77	± 19.40