Observation information
- date-obs: 2025-10-25
- time-obs: 08:12:49.678900000
- date-end: 2025-10-25
- time-end: 10:26:00.660400000
- obs_id: A14_127T09_9000006520
- exposure: 7718.47586977
- sourceid: PG0909+276
- observer: snehalata
- ra_pnt: 138.2153
- dec_pnt: 27.34205
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A14_127T09_9000006520_54507cztM0_level2.fits
| modeM0/AS1A14_127T09_9000006520_54507cztM0_level2_quad_clean.evt
|
| Size (bytes) | 458,092,800 | 114,036,480 |
| Size | 436.9 MB
| 108.8 MB
|
| Events in quadrant A | 3,650,488 | 745,688 |
| Events in quadrant B | 3,877,224 | 799,867 |
| Events in quadrant C | 4,351,585 | 693,740 |
| Events in quadrant D | 4,456,363 | 658,023 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16660 | 0 |
| B | 0 | 17392 | 0 |
| C | 0 | 18989 | 0 |
| D | 0 | 18899 | 3 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 160 | 0 |
| B | 0 | 160 | 0 |
| C | 0 | 160 | 0 |
| D | 0 | 160 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7991 | 44 | 0.550619% |
| B | 7991 | 36 | 0.450507% |
| C | 7992 | 194 | 2.427427% |
| D | 7991 | 151 | 1.889626% |
Noise dominated fraction
Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.
| Quadrant |
# 1 sec bins |
Bins with >0 counts |
Bins with >2000 counts |
High rate bins dominated by noise |
Noise dominated (total time) |
Noise dominated (detector-on time) |
Marked lightcurve |
| A | 7991 | 7991 | 35 | 35 | 0.44% | 0.44% |  |
| B | 7991 | 7991 | 17 | 17 | 0.21% | 0.21% |  |
| C | 7992 | 7992 | 145 | 145 | 1.81% | 1.81% |  |
| D | 7991 | 7991 | 127 | 127 | 1.59% | 1.59% |  |
Top noisy pixels
Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1
| Pixel properties |
Quadrant properties |
| Quadrant |
DetID |
PixID |
Counts |
Sigma |
Mean |
Median |
Sigma |
| A | 11 | 3 | 100086 | 469.56 | 854 | 833 | 211.4 |
| A | 5 | 241 | 94426 | 442.78 | 854 | 833 | 211.4 |
| A | 4 | 3 | 61722 | 288.06 | 854 | 833 | 211.4 |
| B | 5 | 172 | 281326 | 1538.16 | 846 | 813 | 182.4 |
| B | 0 | 213 | 133480 | 727.46 | 846 | 813 | 182.4 |
| B | 5 | 185 | 55189 | 298.16 | 846 | 813 | 182.4 |
| C | 15 | 209 | 426114 | 1884.88 | 820 | 813 | 225.6 |
| C | 10 | 22 | 414342 | 1832.71 | 820 | 813 | 225.6 |
| C | 1 | 16 | 84825 | 372.33 | 820 | 813 | 225.6 |
| D | 3 | 12 | 458309 | 1960.99 | 820 | 783 | 233.3 |
| D | 10 | 181 | 276420 | 1181.4 | 820 | 783 | 233.3 |
| D | 2 | 172 | 128604 | 547.85 | 820 | 783 | 233.3 |
Detector plane histogram (DPH)
Histogram calculated using DETX and DETY for each event in the final _common_clean file
| Quadrant A |
 |
 |
Quadrant B |
| Quadrant D |
 |
 |
Quadrant C |
Count rate plots and images
| Plot type |
Count rate plots |
Images |
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data. |
 |
 |
Quadrant-wise count rates
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins |
 |
 |
Housekeeping plots
| Parameter |
Plot |
| CZT HV Monitor |  |
| D_VDD |  |
| Temperature 1 |  |
| Veto HV Monitor |  |
| Veto LLD |  |
| Alpha Counter |  |
| _CPM_Rate |  |
| CZT Counter |  |
| +2.5 Volts monitor |  |
| +5 Volts monitor |  |
| _ROLL_ROT |  |
| _Roll_DEC |  |
| _Roll_RA |  |
| Veto Counter |  |