| Parameter |
Value |
| Designation |
115P/Maury |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2011-10-05T00:54:14.679360Z |
| Orbit solution date (soln_date, UTC) |
2023-05-03T22:44:04Z |
| Obs used |
1382 |
| NEO |
- |
| M1 |
13.000 |
| K1 |
10.500 |
| PC |
0.030 |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
2014-12-01.0000000 |
| e |
0.51829558 |
| q (au) |
2.057403 |
| a (au) |
4.271089 |
| i (deg) |
11.669729 |
| Ω (om, deg) |
176.077997 |
| ω (w, deg) |
121.113809 |
| M (ma, deg) |
128.739319 |
Magnitude
Scatter + Global Linear
$$
M_a = (10.931 + 5.617\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
10.931 |
| n |
5.617 |
| gf |
0.997 |
| gb |
-1.000 |
| k |
1.000 |
| δ90 |
9.999 |
| 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 |
10:02:41.07 |
+06:32:20.7 |
HIP 49030 |
40.61 |
| 2026-09-20 12:00 |
10:03:01.38 |
+06:30:33.3 |
HIP 49342 |
36.17 |
| 2026-09-21 00:00 |
10:03:21.65 |
+06:28:45.9 |
HIP 49342 |
32.01 |
| 2026-09-21 12:00 |
10:03:41.88 |
+06:26:58.5 |
HIP 49342 |
28.25 |
| 2026-09-22 00:00 |
10:04:02.07 |
+06:25:11.0 |
HIP 49342 |
25.08 |
| 2026-09-22 12:00 |
10:04:22.21 |
+06:23:23.6 |
HIP 49342 |
22.72 |
| 2026-09-23 00:00 |
10:04:42.31 |
+06:21:36.1 |
HIP 49342 |
21.45 |
| 2026-09-23 12:00 |
10:05:02.36 |
+06:19:48.6 |
HIP 49342 |
21.45 |
| 2026-09-24 00:00 |
10:05:22.38 |
+06:18:01.2 |
HIP 49342 |
22.71 |
| 2026-09-24 12:00 |
10:05:42.34 |
+06:16:13.8 |
HIP 49342 |
25.04 |
| 2026-09-25 00:00 |
10:06:02.26 |
+06:14:26.3 |
HIP 49601 |
24.02 |
| 2026-09-25 12:00 |
10:06:22.14 |
+06:12:38.9 |
HIP 49601 |
18.81 |
| 2026-09-26 00:00 |
10:06:41.96 |
+06:10:51.6 |
HIP 49601 |
13.64 |
| 2026-09-26 12:00 |
10:07:01.74 |
+06:09:04.2 |
HIP 49601 |
8.55 |
| 2026-09-27 00:00 |
10:07:21.47 |
+06:07:16.9 |
HIP 49601 |
3.90 |
| 2026-09-27 12:00 |
10:07:41.16 |
+06:05:29.6 |
HIP 49601 |
3.42 |
| 2026-09-28 00:00 |
10:08:00.79 |
+06:03:42.3 |
HIP 49601 |
7.89 |
| 2026-09-28 12:00 |
10:08:20.37 |
+06:01:55.1 |
HIP 49601 |
12.91 |
| 2026-09-29 00:00 |
10:08:39.91 |
+06:00:08.0 |
HIP 49739 |
13.34 |
| 2026-09-29 12:00 |
10:08:59.39 |
+05:58:20.9 |
HIP 49739 |
12.51 |
| 2026-09-30 00:00 |
10:09:18.82 |
+05:56:33.8 |
HIP 49739 |
13.73 |
| 2026-09-30 12:00 |
10:09:38.20 |
+05:54:46.8 |
HIP 49739 |
16.52 |
| 2026-10-01 00:00 |
10:09:57.52 |
+05:53:00.0 |
HIP 49739 |
20.25 |
| 2026-10-01 12:00 |
10:10:16.79 |
+05:51:13.1 |
HIP 49888 |
23.21 |
| 2026-10-02 00:00 |
10:10:36.01 |
+05:49:26.3 |
HIP 49888 |
22.42 |
| 2026-10-02 12:00 |
10:10:55.17 |
+05:47:39.6 |
HIP 49888 |
22.77 |
| 2026-10-03 00:00 |
10:11:14.28 |
+05:45:53.1 |
HIP 49888 |
24.21 |
| 2026-10-03 12:00 |
10:11:33.33 |
+05:44:06.6 |
HIP 49936 |
25.37 |
| 2026-10-04 00:00 |
10:11:52.32 |
+05:42:20.2 |
HIP 49936 |
23.43 |
| 2026-10-04 12:00 |
10:12:11.25 |
+05:40:33.9 |
HIP 49936 |
22.47 |
| 2026-10-05 00:00 |
10:12:30.13 |
+05:38:47.7 |
HIP 49936 |
22.61 |
| 2026-10-05 12:00 |
10:12:48.94 |
+05:37:01.6 |
HIP 49936 |
23.83 |
| 2026-10-06 00:00 |
10:13:07.70 |
+05:35:15.7 |
HIP 50190 |
25.72 |
| 2026-10-06 12:00 |
10:13:26.39 |
+05:33:29.8 |
HIP 50190 |
22.34 |
| 2026-10-07 00:00 |
10:13:45.02 |
+05:31:44.2 |
HIP 50190 |
19.65 |
| 2026-10-07 12:00 |
10:14:03.59 |
+05:29:58.6 |
HIP 50190 |
17.97 |
| 2026-10-08 00:00 |
10:14:22.10 |
+05:28:13.2 |
HIP 50190 |
17.57 |
| 2026-10-08 12:00 |
10:14:40.54 |
+05:26:28.0 |
HIP 50193 |
17.67 |
| 2026-10-09 00:00 |
10:14:58.91 |
+05:24:42.9 |
HIP 50193 |
16.21 |
| 2026-10-09 12:00 |
10:15:17.22 |
+05:22:58.0 |
HIP 50193 |
16.15 |
| 2026-10-10 00:00 |
10:15:35.46 |
+05:21:13.2 |
HIP 50193 |
17.50 |
| 2026-10-10 12:00 |
10:15:53.64 |
+05:19:28.6 |
HIP 50193 |
19.96 |
| 2026-10-11 00:00 |
10:16:11.74 |
+05:17:44.2 |
HIP 50388 |
16.58 |