Observation information
- date-obs: 2018-07-14
- time-obs: 17:26:02.305900000
- date-end: 2018-07-14
- time-end: 19:10:38.306200000
- obs_id: A04_148T03_9000002222
- exposure: 4132.46599855
- sourceid: NGC 581
- observer: shruthibhat
- ra_pnt: 23.34583
- dec_pnt: 60.65
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A04_148T03_9000002222_15106cztM0_level2.evt
| modeM0/AS1A04_148T03_9000002222_15106cztM0_level2_quad_clean.evt
|
| Size (bytes) | 373,017,600 | 78,082,560 |
| Size | 355.7 MB
| 74.5 MB
|
| Events in quadrant A | 2,389,377 | 502,904 |
| Events in quadrant B | 3,091,333 | 506,664 |
| Events in quadrant C | 3,079,957 | 500,249 |
| Events in quadrant D | 2,380,076 | 488,327 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11 | 0 |
| B | 0 | 11 | 0 |
| C | 0 | 11 | 0 |
| D | 0 | 11 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 106 | 0 |
| B | 0 | 106 | 0 |
| C | 0 | 106 | 0 |
| D | 0 | 106 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 10848 | 2 |
| B | 0 | 12605 | 1 |
| C | 0 | 12528 | 1 |
| D | 0 | 10967 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5231 | 38 | 0.726439% |
| B | 5231 | 134 | 2.561652% |
| C | 5231 | 135 | 2.580768% |
| D | 5231 | 40 | 0.764672% |
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 | 6277 | 5232 | 0 | 0 | 0.00% | 0.00% |  |
| B | 6277 | 5232 | 67 | 67 | 1.07% | 1.28% |  |
| C | 6277 | 5232 | 72 | 72 | 1.15% | 1.38% |  |
| D | 6277 | 5232 | 10 | 10 | 0.16% | 0.19% |  |
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 | 12 | 189 | 23875 | 187.2 | 614 | 601 | 124.3 |
| A | 0 | 226 | 5419 | 38.75 | 614 | 601 | 124.3 |
| A | 12 | 194 | 4590 | 32.08 | 614 | 601 | 124.3 |
| B | 3 | 64 | 418214 | 3583.59 | 610 | 594 | 116.5 |
| B | 10 | 245 | 240701 | 2060.36 | 610 | 594 | 116.5 |
| B | 3 | 209 | 19714 | 164.07 | 610 | 594 | 116.5 |
| C | 4 | 254 | 446625 | 3221.36 | 597 | 599 | 138.5 |
| C | 3 | 233 | 305004 | 2198.52 | 597 | 599 | 138.5 |
| C | 13 | 61 | 4335 | 26.98 | 597 | 599 | 138.5 |
| D | 13 | 170 | 49073 | 327.65 | 600 | 582 | 148.0 |
| D | 10 | 70 | 25176 | 166.18 | 600 | 582 | 148.0 |
| D | 2 | 234 | 19947 | 130.85 | 600 | 582 | 148.0 |
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 |  |