Observation information
- date-obs: 2025-10-28
- time-obs: 09:21:29.497300000
- date-end: 2025-10-28
- time-end: 14:46:58.006100000
- obs_id: A14_127T09_9000006520
- exposure: 16694.7734397
- 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_54554cztM0_level2.fits
| modeM0/AS1A14_127T09_9000006520_54554cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,388,712,960 | 250,611,840 |
| Size | 1.3 GB
| 239.0 MB
|
| Events in quadrant A | 17,781,048 | 1,554,580 |
| Events in quadrant B | 9,976,035 | 1,763,229 |
| Events in quadrant C | 10,569,771 | 1,549,119 |
| Events in quadrant D | 11,662,270 | 1,457,079 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 65853 | 4 |
| B | 0 | 42562 | 4 |
| C | 0 | 44416 | 4 |
| D | 0 | 47604 | 4 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 374 | 0 |
| B | 0 | 374 | 0 |
| C | 0 | 374 | 0 |
| D | 0 | 374 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 18324 | 2002 | 10.925562% |
| B | 18325 | 728 | 3.972715% |
| C | 18325 | 719 | 3.923602% |
| D | 18325 | 873 | 4.763984% |
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 | 19529 | 18324 | 1478 | 1478 | 7.57% | 8.07% |  |
| B | 19530 | 18325 | 242 | 242 | 1.24% | 1.32% |  |
| C | 19529 | 18326 | 360 | 360 | 1.84% | 1.96% |  |
| D | 19530 | 18326 | 599 | 599 | 3.07% | 3.27% |  |
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 | 3 | 14 | 8488484 | 17648.44 | 1949 | 1898 | 480.9 |
| A | 11 | 3 | 1077830 | 2237.47 | 1949 | 1898 | 480.9 |
| A | 4 | 249 | 272660 | 563.07 | 1949 | 1898 | 480.9 |
| B | 8 | 234 | 775424 | 1833.23 | 1975 | 1903 | 421.9 |
| B | 0 | 213 | 338511 | 797.75 | 1975 | 1903 | 421.9 |
| B | 10 | 14 | 310132 | 730.5 | 1975 | 1903 | 421.9 |
| C | 12 | 254 | 745809 | 1404.31 | 1945 | 1924 | 529.7 |
| C | 13 | 3 | 446640 | 839.54 | 1945 | 1924 | 529.7 |
| C | 4 | 5 | 292217 | 548.02 | 1945 | 1924 | 529.7 |
| D | 3 | 12 | 1579157 | 2871.79 | 1946 | 1860 | 549.2 |
| D | 1 | 3 | 1330203 | 2418.52 | 1946 | 1860 | 549.2 |
| D | 3 | 176 | 183600 | 330.89 | 1946 | 1860 | 549.2 |
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 |  |