Observation information
- date-obs: 2017-08-03
- time-obs: 03:38:01.106000000
- date-end: 2017-08-03
- time-end: 04:50:40.128900000
- obs_id: C02_028T02_9000001428
- exposure: 3390.27001894
- sourceid: LTT 9491
- observer: annapurni
- ra_pnt: 349.8974
- dec_pnt: -17.09125
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1C02_028T02_9000001428_09998cztM0_level2.evt
| modeM0/AS1C02_028T02_9000001428_09998cztM0_level2_quad_clean.evt
|
| Size (bytes) | 284,783,040 | 64,284,480 |
| Size | 271.6 MB
| 61.3 MB
|
| Events in quadrant A | 2,142,005 | 412,453 |
| Events in quadrant B | 2,118,985 | 420,571 |
| Events in quadrant C | 1,927,956 | 416,653 |
| Events in quadrant D | 2,148,890 | 400,937 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 88 | 0 |
| B | 0 | 88 | 0 |
| C | 0 | 88 | 0 |
| D | 0 | 88 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 9300 | 5 |
| B | 0 | 9180 | 7 |
| C | 0 | 8719 | 2 |
| D | 0 | 9086 | 12 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 1 | 0 |
| B | 0 | 1 | 0 |
| C | 0 | 1 | 0 |
| D | 0 | 1 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 4188 | 240 | 5.730659% |
| B | 4187 | 194 | 4.633389% |
| C | 4189 | 131 | 3.127238% |
| D | 4186 | 163 | 3.893932% |
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 | 4359 | 4189 | 52 | 52 | 1.19% | 1.24% |  |
| B | 4359 | 4188 | 11 | 11 | 0.25% | 0.26% |  |
| C | 4359 | 4189 | 1 | 1 | 0.02% | 0.02% |  |
| D | 4359 | 4188 | 9 | 9 | 0.21% | 0.21% |  |
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 | 15 | 174 | 198530 | 1924.72 | 494 | 480 | 102.9 |
| A | 8 | 15 | 40690 | 390.78 | 494 | 480 | 102.9 |
| A | 0 | 226 | 4484 | 38.91 | 494 | 480 | 102.9 |
| B | 4 | 81 | 57758 | 581.98 | 499 | 484 | 98.4 |
| B | 4 | 239 | 48564 | 488.56 | 499 | 484 | 98.4 |
| B | 0 | 214 | 25773 | 256.97 | 499 | 484 | 98.4 |
| C | 12 | 4 | 6326 | 50.83 | 489 | 492 | 114.8 |
| C | 8 | 128 | 5929 | 47.37 | 489 | 492 | 114.8 |
| C | 13 | 61 | 3478 | 26.02 | 489 | 492 | 114.8 |
| D | 8 | 195 | 198133 | 1558.13 | 484 | 471 | 126.9 |
| D | 7 | 71 | 27042 | 209.45 | 484 | 471 | 126.9 |
| D | 2 | 152 | 26658 | 206.43 | 484 | 471 | 126.9 |
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 |  |