Invariants
| Level: | $240$ | $\SL_2$-level: | $16$ | ||||
| Index: | $96$ | $\PSL_2$-index: | $48$ | ||||
| Genus: | $0 = 1 + \frac{ 48 }{12} - \frac{ 0 }{4} - \frac{ 0 }{3} - \frac{ 10 }{2}$ | ||||||
| Cusps: | $10$ (none of which are rational) | Cusp widths | $1^{4}\cdot2^{2}\cdot4^{2}\cdot16^{2}$ | Cusp orbits | $2^{5}$ | ||
| Elliptic points: | $0$ of order $2$ and $0$ of order $3$ | ||||||
| $\Q$-gonality: | $1 \le \gamma \le 2$ | ||||||
| $\overline{\Q}$-gonality: | $1$ | ||||||
| Rational cusps: | $0$ | ||||||
| Rational CM points: | none |
Other labels
| Cummins and Pauli (CP) label: | 16H0 |
Level structure
| $\GL_2(\Z/240\Z)$-generators: | $\begin{bmatrix}21&158\\232&83\end{bmatrix}$, $\begin{bmatrix}30&191\\47&14\end{bmatrix}$, $\begin{bmatrix}46&211\\197&156\end{bmatrix}$, $\begin{bmatrix}85&26\\16&199\end{bmatrix}$, $\begin{bmatrix}118&107\\45&164\end{bmatrix}$ |
| Contains $-I$: | no $\quad$ (see 240.48.0.cj.2 for the level structure with $-I$) |
| Cyclic 240-isogeny field degree: | $48$ |
| Cyclic 240-torsion field degree: | $1536$ |
| Full 240-torsion field degree: | $5898240$ |
Models
This modular curve is isomorphic to $\mathbb{P}^1$.
Rational points
This modular curve has real points and $\Q_p$ points for $p$ not dividing the level, but no known rational points.
Modular covers
This modular curve minimally covers the modular curves listed below.
| Covered curve | Level | Index | Degree | Genus | Rank |
|---|---|---|---|---|---|
| 16.48.0-16.e.2.3 | $16$ | $2$ | $2$ | $0$ | $0$ |
| 120.48.0-120.ej.2.16 | $120$ | $2$ | $2$ | $0$ | $?$ |
| 240.48.0-16.e.2.6 | $240$ | $2$ | $2$ | $0$ | $?$ |
| 240.48.0-240.o.1.1 | $240$ | $2$ | $2$ | $0$ | $?$ |
| 240.48.0-240.o.1.52 | $240$ | $2$ | $2$ | $0$ | $?$ |
| 240.48.0-120.ej.2.2 | $240$ | $2$ | $2$ | $0$ | $?$ |
This modular curve is minimally covered by the modular curves in the database listed below.
| Covering curve | Level | Index | Degree | Genus |
|---|---|---|---|---|
| 240.192.1-240.cb.1.14 | $240$ | $2$ | $2$ | $1$ |
| 240.192.1-240.cm.1.5 | $240$ | $2$ | $2$ | $1$ |
| 240.192.1-240.do.1.9 | $240$ | $2$ | $2$ | $1$ |
| 240.192.1-240.fo.1.5 | $240$ | $2$ | $2$ | $1$ |
| 240.192.1-240.jd.1.5 | $240$ | $2$ | $2$ | $1$ |
| 240.192.1-240.jm.1.13 | $240$ | $2$ | $2$ | $1$ |
| 240.192.1-240.kk.1.5 | $240$ | $2$ | $2$ | $1$ |
| 240.192.1-240.kr.1.9 | $240$ | $2$ | $2$ | $1$ |
| 240.192.1-240.ls.1.5 | $240$ | $2$ | $2$ | $1$ |
| 240.192.1-240.lz.1.3 | $240$ | $2$ | $2$ | $1$ |
| 240.192.1-240.mx.1.5 | $240$ | $2$ | $2$ | $1$ |
| 240.192.1-240.ng.1.3 | $240$ | $2$ | $2$ | $1$ |
| 240.192.1-240.od.1.3 | $240$ | $2$ | $2$ | $1$ |
| 240.192.1-240.om.1.9 | $240$ | $2$ | $2$ | $1$ |
| 240.192.1-240.pk.1.3 | $240$ | $2$ | $2$ | $1$ |
| 240.192.1-240.pr.1.5 | $240$ | $2$ | $2$ | $1$ |
| 240.288.8-240.sp.1.3 | $240$ | $3$ | $3$ | $8$ |
| 240.384.7-240.ya.2.2 | $240$ | $4$ | $4$ | $7$ |
| 240.480.16-240.dl.1.3 | $240$ | $5$ | $5$ | $16$ |