| 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
$$
M_a = (10.194 + 3.771\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
10.194 |
| n |
3.771 |
| gf |
0.999 |
| gb |
-0.525 |
| k |
0.800 |
| δ90 |
10.000 |
| 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) |
| 2026-03-26 00:00 |
08:03:33.47 |
-37:08:21.8 |
HIP 39415 |
1.30 |
| 2026-03-26 12:00 |
08:03:32.08 |
-37:07:42.6 |
HIP 39415 |
1.29 |
| 2026-03-27 00:00 |
08:03:30.71 |
-37:07:03.3 |
HIP 39415 |
1.64 |
| 2026-03-27 12:00 |
08:03:29.39 |
-37:06:23.9 |
HIP 39415 |
2.17 |
| 2026-03-28 00:00 |
08:03:28.09 |
-37:05:44.4 |
HIP 39415 |
2.79 |
| 2026-03-28 12:00 |
08:03:26.83 |
-37:05:04.8 |
HIP 39415 |
3.44 |
| 2026-03-29 00:00 |
08:03:25.60 |
-37:04:25.2 |
HIP 39415 |
4.11 |
| 2026-03-29 12:00 |
08:03:24.41 |
-37:03:45.5 |
HIP 39415 |
4.79 |
| 2026-03-30 00:00 |
08:03:23.25 |
-37:03:05.7 |
HIP 39415 |
5.48 |
| 2026-03-30 12:00 |
08:03:22.12 |
-37:02:25.9 |
HIP 39415 |
6.17 |
| 2026-03-31 00:00 |
08:03:21.03 |
-37:01:46.0 |
HIP 39415 |
6.86 |
| 2026-03-31 12:00 |
08:03:19.97 |
-37:01:06.0 |
HIP 39415 |
7.55 |
| 2026-04-01 00:00 |
08:03:18.95 |
-37:00:26.0 |
HIP 39415 |
8.24 |
| 2026-04-01 12:00 |
08:03:17.96 |
-36:59:46.0 |
HIP 39415 |
8.94 |
| 2026-04-02 00:00 |
08:03:17.00 |
-36:59:05.9 |
HIP 39415 |
9.63 |
| 2026-04-02 12:00 |
08:03:16.08 |
-36:58:25.7 |
HIP 39415 |
10.33 |
| 2026-04-03 00:00 |
08:03:15.19 |
-36:57:45.5 |
HIP 39415 |
11.02 |
| 2026-04-03 12:00 |
08:03:14.33 |
-36:57:05.3 |
HIP 39415 |
11.71 |
| 2026-04-04 00:00 |
08:03:13.51 |
-36:56:25.0 |
HIP 39415 |
12.40 |
| 2026-04-04 12:00 |
08:03:12.73 |
-36:55:44.7 |
HIP 39415 |
13.09 |
| 2026-04-05 00:00 |
08:03:11.97 |
-36:55:04.3 |
HIP 39415 |
13.78 |
| 2026-04-05 12:00 |
08:03:11.26 |
-36:54:23.9 |
HIP 39415 |
14.47 |
| 2026-04-06 00:00 |
08:03:10.57 |
-36:53:43.5 |
HIP 39415 |
15.15 |
| 2026-04-06 12:00 |
08:03:09.92 |
-36:53:03.1 |
HIP 39415 |
15.84 |
| 2026-04-07 00:00 |
08:03:09.31 |
-36:52:22.7 |
HIP 39299 |
16.50 |
| 2026-04-07 12:00 |
08:03:08.73 |
-36:51:42.2 |
HIP 39376 |
15.97 |
| 2026-04-08 00:00 |
08:03:08.18 |
-36:51:01.8 |
HIP 39376 |
15.28 |
| 2026-04-08 12:00 |
08:03:07.67 |
-36:50:21.3 |
HIP 39376 |
14.60 |
| 2026-04-09 00:00 |
08:03:07.19 |
-36:49:40.8 |
HIP 39376 |
13.92 |
| 2026-04-09 12:00 |
08:03:06.75 |
-36:49:00.3 |
HIP 39376 |
13.24 |
| 2026-04-10 00:00 |
08:03:06.34 |
-36:48:19.8 |
HIP 39376 |
12.56 |
| 2026-04-10 12:00 |
08:03:05.96 |
-36:47:39.3 |
HIP 39376 |
11.89 |
| 2026-04-11 00:00 |
08:03:05.62 |
-36:46:58.8 |
HIP 39376 |
11.21 |
| 2026-04-11 12:00 |
08:03:05.32 |
-36:46:18.4 |
HIP 39376 |
10.53 |
| 2026-04-12 00:00 |
08:03:05.05 |
-36:45:37.9 |
HIP 39376 |
9.85 |
| 2026-04-12 12:00 |
08:03:04.81 |
-36:44:57.5 |
HIP 39376 |
9.18 |
| 2026-04-13 00:00 |
08:03:04.61 |
-36:44:17.1 |
HIP 39376 |
8.50 |
| 2026-04-13 12:00 |
08:03:04.45 |
-36:43:36.7 |
HIP 39376 |
7.83 |
| 2026-04-14 00:00 |
08:03:04.31 |
-36:42:56.3 |
HIP 39376 |
7.16 |
| 2026-04-14 12:00 |
08:03:04.22 |
-36:42:15.9 |
HIP 39376 |
6.48 |
| 2026-04-15 00:00 |
08:03:04.15 |
-36:41:35.6 |
HIP 39376 |
5.81 |
| 2026-04-15 12:00 |
08:03:04.13 |
-36:40:55.3 |
HIP 39376 |
5.14 |
| 2026-04-16 00:00 |
08:03:04.13 |
-36:40:15.1 |
HIP 39376 |
4.48 |