| 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 |
1.000 |
| gb |
-1.000 |
| k |
1.000 |
| 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) |
| 2026-05-12 00:00 |
08:41:37.36 |
+11:08:02.6 |
HIP 42631 |
7.17 |
| 2026-05-12 12:00 |
08:41:46.71 |
+11:08:13.3 |
HIP 42631 |
9.04 |
| 2026-05-13 00:00 |
08:41:56.20 |
+11:08:23.3 |
HIP 42631 |
11.09 |
| 2026-05-13 12:00 |
08:42:05.82 |
+11:08:32.6 |
HIP 42631 |
13.26 |
| 2026-05-14 00:00 |
08:42:15.58 |
+11:08:41.2 |
HIP 42631 |
15.51 |
| 2026-05-14 12:00 |
08:42:25.46 |
+11:08:49.1 |
HIP 42631 |
17.83 |
| 2026-05-15 00:00 |
08:42:35.48 |
+11:08:56.2 |
HIP 42839 |
18.09 |
| 2026-05-15 12:00 |
08:42:45.63 |
+11:09:02.6 |
HIP 42839 |
15.77 |
| 2026-05-16 00:00 |
08:42:55.91 |
+11:09:08.3 |
HIP 42839 |
13.48 |
| 2026-05-16 12:00 |
08:43:06.32 |
+11:09:13.3 |
HIP 42839 |
11.28 |
| 2026-05-17 00:00 |
08:43:16.86 |
+11:09:17.6 |
HIP 42839 |
9.24 |
| 2026-05-17 12:00 |
08:43:27.53 |
+11:09:21.2 |
HIP 42839 |
7.54 |
| 2026-05-18 00:00 |
08:43:38.32 |
+11:09:24.0 |
HIP 42839 |
6.48 |
| 2026-05-18 12:00 |
08:43:49.24 |
+11:09:26.2 |
HIP 42839 |
6.44 |
| 2026-05-19 00:00 |
08:44:00.28 |
+11:09:27.6 |
HIP 42839 |
7.46 |
| 2026-05-19 12:00 |
08:44:11.45 |
+11:09:28.3 |
HIP 42839 |
9.22 |
| 2026-05-20 00:00 |
08:44:22.74 |
+11:09:28.3 |
HIP 42839 |
11.41 |
| 2026-05-20 12:00 |
08:44:34.16 |
+11:09:27.6 |
HIP 42839 |
13.84 |
| 2026-05-21 00:00 |
08:44:45.69 |
+11:09:26.2 |
HIP 42839 |
16.42 |
| 2026-05-21 12:00 |
08:44:57.35 |
+11:09:24.1 |
HIP 42839 |
19.11 |
| 2026-05-22 00:00 |
08:45:09.13 |
+11:09:21.2 |
HIP 42839 |
21.87 |
| 2026-05-22 12:00 |
08:45:21.02 |
+11:09:17.7 |
HIP 42839 |
24.69 |
| 2026-05-23 00:00 |
08:45:33.04 |
+11:09:13.5 |
HIP 43137 |
24.01 |
| 2026-05-23 12:00 |
08:45:45.17 |
+11:09:08.6 |
HIP 43137 |
21.04 |
| 2026-05-24 00:00 |
08:45:57.42 |
+11:09:02.9 |
HIP 43137 |
18.04 |
| 2026-05-24 12:00 |
08:46:09.78 |
+11:08:56.6 |
HIP 43137 |
15.02 |
| 2026-05-25 00:00 |
08:46:22.26 |
+11:08:49.6 |
HIP 43137 |
11.97 |
| 2026-05-25 12:00 |
08:46:34.85 |
+11:08:41.9 |
HIP 43137 |
8.91 |
| 2026-05-26 00:00 |
08:46:47.56 |
+11:08:33.5 |
HIP 43138 |
5.84 |
| 2026-05-26 12:00 |
08:47:00.38 |
+11:08:24.4 |
HIP 43138 |
2.86 |
| 2026-05-27 00:00 |
08:47:13.30 |
+11:08:14.7 |
HIP 43138 |
1.44 |
| 2026-05-27 12:00 |
08:47:26.34 |
+11:08:04.2 |
HIP 43138 |
4.05 |
| 2026-05-28 00:00 |
08:47:39.49 |
+11:07:53.1 |
HIP 43138 |
7.19 |
| 2026-05-28 12:00 |
08:47:52.75 |
+11:07:41.3 |
HIP 43138 |
10.41 |
| 2026-05-29 00:00 |
08:48:06.12 |
+11:07:28.8 |
HIP 43138 |
13.68 |
| 2026-05-29 12:00 |
08:48:19.59 |
+11:07:15.6 |
HIP 43138 |
16.98 |
| 2026-05-30 00:00 |
08:48:33.17 |
+11:07:01.7 |
HIP 43138 |
20.31 |
| 2026-05-30 12:00 |
08:48:46.85 |
+11:06:47.2 |
HIP 43138 |
23.68 |
| 2026-05-31 00:00 |
08:49:00.65 |
+11:06:32.0 |
HIP 43387 |
26.22 |
| 2026-05-31 12:00 |
08:49:14.54 |
+11:06:16.1 |
HIP 43387 |
24.05 |
| 2026-06-01 00:00 |
08:49:28.54 |
+11:05:59.5 |
HIP 43387 |
22.19 |
| 2026-06-01 12:00 |
08:49:42.64 |
+11:05:42.3 |
HIP 43387 |
20.74 |
| 2026-06-02 00:00 |
08:49:56.84 |
+11:05:24.4 |
HIP 43387 |
19.80 |