| Parameter |
Value |
| Designation |
316P/LONEOS-Christensen |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2006-11-07T01:27:06.275520Z |
| Orbit solution date (soln_date, UTC) |
2025-04-09T13:45:33Z |
| Obs used |
128 |
| NEO |
- |
| M1 |
15.100 |
| K1 |
4.500 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2017-01-26T12:54:38.016000Z |
| Discovery magnitude (MPC) |
21.00 z |
| Discovery observatory (MPC) |
T09 · Subaru Telescope, Maunakea |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
2007-09-04.0000000 |
| e |
0.16637404 |
| q (au) |
3.606774 |
| a (au) |
4.326609 |
| i (deg) |
9.882930 |
| Ω (om, deg) |
246.930761 |
| ω (w, deg) |
191.667732 |
| M (ma, deg) |
32.958072 |
Magnitude
Scatter + Global Linear
$$
M_a = (16.818 + 4.167\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
16.818 |
| n |
4.167 |
| gf |
1.000 |
| gb |
-0.779 |
| 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
Finding Chart
Ephemeris
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-05-12 00:00 |
09:09:36.71 |
+05:51:56.8 |
HIP 44917 |
17.72 |
| 2026-05-12 12:00 |
09:09:52.82 |
+05:51:47.7 |
HIP 44917 |
19.86 |
| 2026-05-13 00:00 |
09:10:09.10 |
+05:51:37.5 |
HIP 44917 |
22.53 |
| 2026-05-13 12:00 |
09:10:25.55 |
+05:51:26.2 |
HIP 44917 |
25.59 |
| 2026-05-14 00:00 |
09:10:42.15 |
+05:51:13.9 |
HIP 44917 |
28.94 |
| 2026-05-14 12:00 |
09:10:58.92 |
+05:51:00.4 |
HIP 45150 |
26.89 |
| 2026-05-15 00:00 |
09:11:15.86 |
+05:50:45.8 |
HIP 45150 |
24.72 |
| 2026-05-15 12:00 |
09:11:32.95 |
+05:50:30.2 |
HIP 45150 |
23.09 |
| 2026-05-16 00:00 |
09:11:50.20 |
+05:50:13.5 |
HIP 45150 |
22.15 |
| 2026-05-16 12:00 |
09:12:07.61 |
+05:49:55.6 |
HIP 45252 |
18.75 |
| 2026-05-17 00:00 |
09:12:25.18 |
+05:49:36.7 |
HIP 45252 |
14.37 |
| 2026-05-17 12:00 |
09:12:42.90 |
+05:49:16.7 |
HIP 45252 |
9.95 |
| 2026-05-18 00:00 |
09:13:00.78 |
+05:48:55.6 |
HIP 45252 |
5.50 |
| 2026-05-18 12:00 |
09:13:18.81 |
+05:48:33.5 |
HIP 45252 |
1.08 |
| 2026-05-19 00:00 |
09:13:36.99 |
+05:48:10.2 |
HIP 45252 |
3.59 |
| 2026-05-19 12:00 |
09:13:55.33 |
+05:47:45.9 |
HIP 45252 |
8.15 |
| 2026-05-20 00:00 |
09:14:13.81 |
+05:47:20.4 |
HIP 45252 |
12.77 |
| 2026-05-20 12:00 |
09:14:32.44 |
+05:46:53.9 |
HIP 45252 |
17.42 |
| 2026-05-21 00:00 |
09:14:51.21 |
+05:46:26.4 |
HIP 45420 |
17.00 |
| 2026-05-21 12:00 |
09:15:10.14 |
+05:45:57.7 |
HIP 45420 |
15.20 |
| 2026-05-22 00:00 |
09:15:29.20 |
+05:45:28.0 |
HIP 45420 |
14.75 |
| 2026-05-22 12:00 |
09:15:48.41 |
+05:44:57.2 |
HIP 45420 |
15.80 |
| 2026-05-23 00:00 |
09:16:07.76 |
+05:44:25.4 |
HIP 45420 |
18.11 |
| 2026-05-23 12:00 |
09:16:27.25 |
+05:43:52.5 |
HIP 45420 |
21.31 |
| 2026-05-24 00:00 |
09:16:46.88 |
+05:43:18.5 |
HIP 45420 |
25.08 |
| 2026-05-24 12:00 |
09:17:06.64 |
+05:42:43.5 |
HIP 45420 |
29.22 |
| 2026-05-25 00:00 |
09:17:26.54 |
+05:42:07.4 |
HIP 45420 |
33.60 |
| 2026-05-25 12:00 |
09:17:46.58 |
+05:41:30.3 |
HIP 45420 |
38.16 |
| 2026-05-26 00:00 |
09:18:06.75 |
+05:40:52.1 |
HIP 45758 |
38.14 |
| 2026-05-26 12:00 |
09:18:27.05 |
+05:40:12.9 |
HIP 45758 |
34.37 |
| 2026-05-27 00:00 |
09:18:47.48 |
+05:39:32.7 |
HIP 45758 |
30.95 |
| 2026-05-27 12:00 |
09:19:08.05 |
+05:38:51.4 |
HIP 45758 |
28.03 |
| 2026-05-28 00:00 |
09:19:28.74 |
+05:38:09.1 |
HIP 45758 |
25.80 |
| 2026-05-28 12:00 |
09:19:49.56 |
+05:37:25.8 |
HIP 45882 |
23.71 |
| 2026-05-29 00:00 |
09:20:10.51 |
+05:36:41.4 |
HIP 45882 |
18.54 |
| 2026-05-29 12:00 |
09:20:31.58 |
+05:35:56.0 |
HIP 45882 |
13.41 |
| 2026-05-30 00:00 |
09:20:52.77 |
+05:35:09.6 |
HIP 45882 |
8.44 |
| 2026-05-30 12:00 |
09:21:14.09 |
+05:34:22.1 |
HIP 45882 |
4.40 |
| 2026-05-31 00:00 |
09:21:35.53 |
+05:33:33.7 |
HIP 45882 |
5.01 |
| 2026-05-31 12:00 |
09:21:57.10 |
+05:32:44.2 |
HIP 45942 |
3.41 |
| 2026-06-01 00:00 |
09:22:18.78 |
+05:31:53.7 |
HIP 45942 |
3.86 |
| 2026-06-01 12:00 |
09:22:40.58 |
+05:31:02.2 |
HIP 45942 |
8.86 |
| 2026-06-02 00:00 |
09:23:02.50 |
+05:30:09.8 |
HIP 45942 |
14.26 |