| Parameter |
Value |
| Designation |
C/2006 M1 (LINEAR) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2007-02-13T22:08:12.292800Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:30:58Z |
| Obs used |
629 |
| NEO |
- |
| M1 |
9.400 |
| K1 |
9.250 |
| PC |
0.030 |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
2006-12-24.0000000 |
| e |
0.97685593 |
| q (au) |
3.556199 |
| a (au) |
153.654849 |
| i (deg) |
54.876917 |
| Ω (om, deg) |
231.615075 |
| ω (w, deg) |
122.894200 |
| M (ma, deg) |
359.973132 |
Magnitude
Scatter + Global Linear
$$
M_a = (10.193 + 3.771\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
10.193 |
| n |
3.771 |
| gf |
0.999 |
| gb |
-0.525 |
| k |
0.800 |
| δ90 |
9.895 |
| Parameter |
Symbol |
Range |
Description |
| Absolute magnitude at 1 AU from Sun and Earth |
H0 |
-5 to 20 |
Intrinsic brightness of the comet |
| Photometric slope parameter |
n |
2 to 6 |
Rate of brightness change with heliocentric distance |
| Forward scattering asymmetry factor |
gf |
0.8 to 1 |
Degree of forward scattering |
| Backward scattering asymmetry factor |
gb |
-1 to -0.5 |
Degree of backward scattering |
| Partitioning coefficient |
k |
0.8 to 1 |
Ratio between forward/backward scattering contributions |
| Dust-to-gas brightness ratio |
δ90 |
1 to 10 |
Relative contribution of dust scattering to gas emission |
Reference: EPSC-DPS2025-160
Ephemeris
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-09-20 00:00 |
08:18:32.50 |
-36:18:02.0 |
HIP 40639 |
16.82 |
| 2026-09-20 12:00 |
08:18:34.93 |
-36:18:39.5 |
HIP 40639 |
17.61 |
| 2026-09-21 00:00 |
08:18:37.33 |
-36:19:17.1 |
HIP 40639 |
18.40 |
| 2026-09-21 12:00 |
08:18:39.70 |
-36:19:54.9 |
HIP 40639 |
19.19 |
| 2026-09-22 00:00 |
08:18:42.05 |
-36:20:32.8 |
HIP 40706 |
19.10 |
| 2026-09-22 12:00 |
08:18:44.37 |
-36:21:10.9 |
HIP 40706 |
18.52 |
| 2026-09-23 00:00 |
08:18:46.66 |
-36:21:49.1 |
HIP 40706 |
17.95 |
| 2026-09-23 12:00 |
08:18:48.93 |
-36:22:27.4 |
HIP 40706 |
17.40 |
| 2026-09-24 00:00 |
08:18:51.17 |
-36:23:05.9 |
HIP 40706 |
16.86 |
| 2026-09-24 12:00 |
08:18:53.38 |
-36:23:44.6 |
HIP 40706 |
16.33 |
| 2026-09-25 00:00 |
08:18:55.57 |
-36:24:23.3 |
HIP 40706 |
15.82 |
| 2026-09-25 12:00 |
08:18:57.73 |
-36:25:02.2 |
HIP 40706 |
15.34 |
| 2026-09-26 00:00 |
08:18:59.86 |
-36:25:41.2 |
HIP 40706 |
14.87 |
| 2026-09-26 12:00 |
08:19:01.96 |
-36:26:20.3 |
HIP 40706 |
14.42 |
| 2026-09-27 00:00 |
08:19:04.04 |
-36:26:59.6 |
HIP 40706 |
14.00 |
| 2026-09-27 12:00 |
08:19:06.08 |
-36:27:39.0 |
HIP 40706 |
13.61 |
| 2026-09-28 00:00 |
08:19:08.10 |
-36:28:18.5 |
HIP 40826 |
13.12 |
| 2026-09-28 12:00 |
08:19:10.09 |
-36:28:58.1 |
HIP 40826 |
12.40 |
| 2026-09-29 00:00 |
08:19:12.06 |
-36:29:37.8 |
HIP 40826 |
11.68 |
| 2026-09-29 12:00 |
08:19:13.99 |
-36:30:17.7 |
HIP 40826 |
10.97 |
| 2026-09-30 00:00 |
08:19:15.89 |
-36:30:57.6 |
HIP 40826 |
10.28 |
| 2026-09-30 12:00 |
08:19:17.77 |
-36:31:37.7 |
HIP 40826 |
9.60 |
| 2026-10-01 00:00 |
08:19:19.61 |
-36:32:17.8 |
HIP 40826 |
8.94 |
| 2026-10-01 12:00 |
08:19:21.43 |
-36:32:58.1 |
HIP 40826 |
8.30 |
| 2026-10-02 00:00 |
08:19:23.22 |
-36:33:38.4 |
HIP 40826 |
7.69 |
| 2026-10-02 12:00 |
08:19:24.98 |
-36:34:18.9 |
HIP 40826 |
7.12 |
| 2026-10-03 00:00 |
08:19:26.71 |
-36:34:59.4 |
HIP 40826 |
6.59 |
| 2026-10-03 12:00 |
08:19:28.41 |
-36:35:40.1 |
HIP 40826 |
6.11 |
| 2026-10-04 00:00 |
08:19:30.07 |
-36:36:20.8 |
HIP 40826 |
5.70 |
| 2026-10-04 12:00 |
08:19:31.71 |
-36:37:01.6 |
HIP 40826 |
5.38 |
| 2026-10-05 00:00 |
08:19:33.32 |
-36:37:42.5 |
HIP 40826 |
5.15 |
| 2026-10-05 12:00 |
08:19:34.90 |
-36:38:23.5 |
HIP 40826 |
5.03 |
| 2026-10-06 00:00 |
08:19:36.45 |
-36:39:04.5 |
HIP 40826 |
5.02 |
| 2026-10-06 12:00 |
08:19:37.96 |
-36:39:45.7 |
HIP 40826 |
5.14 |
| 2026-10-07 00:00 |
08:19:39.45 |
-36:40:26.9 |
HIP 40826 |
5.36 |
| 2026-10-07 12:00 |
08:19:40.90 |
-36:41:08.2 |
HIP 40826 |
5.68 |
| 2026-10-08 00:00 |
08:19:42.32 |
-36:41:49.5 |
HIP 40826 |
6.08 |
| 2026-10-08 12:00 |
08:19:43.72 |
-36:42:30.9 |
HIP 40826 |
6.55 |
| 2026-10-09 00:00 |
08:19:45.08 |
-36:43:12.4 |
HIP 40826 |
7.06 |
| 2026-10-09 12:00 |
08:19:46.41 |
-36:43:53.9 |
HIP 40826 |
7.62 |
| 2026-10-10 00:00 |
08:19:47.70 |
-36:44:35.5 |
HIP 40826 |
8.21 |
| 2026-10-10 12:00 |
08:19:48.97 |
-36:45:17.1 |
HIP 40826 |
8.82 |
| 2026-10-11 00:00 |
08:19:50.20 |
-36:45:58.8 |
HIP 40826 |
9.45 |