| Parameter |
Value |
| Designation |
C/1914 F1 (Kritzinger) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1914-06-04T16:34:09.307200Z |
| Orbit solution date (soln_date, UTC) |
2024-04-15T15:43:28Z |
| Obs used |
69 |
| NEO |
- |
| M1 |
11.100 |
| K1 |
4.500 |
| PC |
- |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
1914-05-20.0000000 |
| e |
1.00064055 |
| q (au) |
1.198609 |
| a (au) |
-1871.219758 |
| i (deg) |
23.919800 |
| Ω (om, deg) |
200.121883 |
| ω (w, deg) |
72.221112 |
| M (ma, deg) |
-0.000191 |
Magnitude
Scatter + Global Linear
$$
M_a = (10.496 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
10.496 |
| n |
2.000 |
| gf |
1.000 |
| gb |
-1.000 |
| k |
0.988 |
| 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 |
05:18:22.87 |
+02:19:45.4 |
HIP 24699 |
8.20 |
| 2026-05-12 12:00 |
05:18:23.67 |
+02:19:48.6 |
HIP 24699 |
8.40 |
| 2026-05-13 00:00 |
05:18:24.48 |
+02:19:51.7 |
HIP 24699 |
8.61 |
| 2026-05-13 12:00 |
05:18:25.29 |
+02:19:54.9 |
HIP 24699 |
8.82 |
| 2026-05-14 00:00 |
05:18:26.10 |
+02:19:58.0 |
HIP 24699 |
9.03 |
| 2026-05-14 12:00 |
05:18:26.91 |
+02:20:01.0 |
HIP 24699 |
9.23 |
| 2026-05-15 00:00 |
05:18:27.73 |
+02:20:04.1 |
HIP 24699 |
9.44 |
| 2026-05-15 12:00 |
05:18:28.55 |
+02:20:07.1 |
HIP 24699 |
9.66 |
| 2026-05-16 00:00 |
05:18:29.38 |
+02:20:10.0 |
HIP 24699 |
9.87 |
| 2026-05-16 12:00 |
05:18:30.21 |
+02:20:13.0 |
HIP 24699 |
10.08 |
| 2026-05-17 00:00 |
05:18:31.04 |
+02:20:15.9 |
HIP 24699 |
10.29 |
| 2026-05-17 12:00 |
05:18:31.87 |
+02:20:18.7 |
HIP 24699 |
10.51 |
| 2026-05-18 00:00 |
05:18:32.71 |
+02:20:21.6 |
HIP 24699 |
10.72 |
| 2026-05-18 12:00 |
05:18:33.55 |
+02:20:24.3 |
HIP 24699 |
10.94 |
| 2026-05-19 00:00 |
05:18:34.40 |
+02:20:27.1 |
HIP 24699 |
11.15 |
| 2026-05-19 12:00 |
05:18:35.24 |
+02:20:29.8 |
HIP 24699 |
11.37 |
| 2026-05-20 00:00 |
05:18:36.09 |
+02:20:32.5 |
HIP 24699 |
11.58 |
| 2026-05-20 12:00 |
05:18:36.95 |
+02:20:35.2 |
HIP 24699 |
11.80 |
| 2026-05-21 00:00 |
05:18:37.80 |
+02:20:37.8 |
HIP 24699 |
12.02 |
| 2026-05-21 12:00 |
05:18:38.66 |
+02:20:40.4 |
HIP 24699 |
12.24 |
| 2026-05-22 00:00 |
05:18:39.52 |
+02:20:42.9 |
HIP 24699 |
12.46 |
| 2026-05-22 12:00 |
05:18:40.38 |
+02:20:45.4 |
HIP 24699 |
12.68 |
| 2026-05-23 00:00 |
05:18:41.25 |
+02:20:47.9 |
HIP 24699 |
12.90 |
| 2026-05-23 12:00 |
05:18:42.12 |
+02:20:50.3 |
HIP 24699 |
13.12 |
| 2026-05-24 00:00 |
05:18:42.99 |
+02:20:52.7 |
HIP 24699 |
13.34 |
| 2026-05-24 12:00 |
05:18:43.86 |
+02:20:55.0 |
HIP 24699 |
13.56 |
| 2026-05-25 00:00 |
05:18:44.74 |
+02:20:57.4 |
HIP 24699 |
13.78 |
| 2026-05-25 12:00 |
05:18:45.61 |
+02:20:59.7 |
HIP 24699 |
14.01 |
| 2026-05-26 00:00 |
05:18:46.49 |
+02:21:01.9 |
HIP 24699 |
14.23 |
| 2026-05-26 12:00 |
05:18:47.37 |
+02:21:04.1 |
HIP 24699 |
14.45 |
| 2026-05-27 00:00 |
05:18:48.26 |
+02:21:06.3 |
HIP 24699 |
14.67 |
| 2026-05-27 12:00 |
05:18:49.14 |
+02:21:08.4 |
HIP 24699 |
14.90 |
| 2026-05-28 00:00 |
05:18:50.03 |
+02:21:10.5 |
HIP 24699 |
15.12 |
| 2026-05-28 12:00 |
05:18:50.92 |
+02:21:12.6 |
HIP 24699 |
15.35 |
| 2026-05-29 00:00 |
05:18:51.81 |
+02:21:14.6 |
HIP 24817 |
15.30 |
| 2026-05-29 12:00 |
05:18:52.70 |
+02:21:16.6 |
HIP 24817 |
15.20 |
| 2026-05-30 00:00 |
05:18:53.60 |
+02:21:18.5 |
HIP 24817 |
15.10 |
| 2026-05-30 12:00 |
05:18:54.49 |
+02:21:20.4 |
HIP 24817 |
15.01 |
| 2026-05-31 00:00 |
05:18:55.39 |
+02:21:22.3 |
HIP 24817 |
14.92 |
| 2026-05-31 12:00 |
05:18:56.29 |
+02:21:24.1 |
HIP 24817 |
14.83 |
| 2026-06-01 00:00 |
05:18:57.19 |
+02:21:25.9 |
HIP 24817 |
14.75 |
| 2026-06-01 12:00 |
05:18:58.09 |
+02:21:27.7 |
HIP 24817 |
14.67 |
| 2026-06-02 00:00 |
05:18:58.99 |
+02:21:29.4 |
HIP 24817 |
14.59 |