ASTROSAT CZTI

Data Quality Report

Orbit 16270

Creation date: 2024-06-27T17:20:27.050171
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A05_182T02_9000002392_16270cztM0_level2.evt modeM0/AS1A05_182T02_9000002392_16270cztM0_level2_quad_clean.evt
Size (bytes)507,168,000101,102,400
Size483.7 MB 96.4 MB
Events in quadrant A3,259,819675,642
Events in quadrant B5,078,094662,449
Events in quadrant C3,110,448653,368
Events in quadrant D3,498,147645,221

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133102
B0190371
C0127471
D0142141

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60871242.037128%
B608760910.004929%
C60871262.069985%
D60871011.659274%

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 7363 6089 11 11 0.15% 0.18%
B 7363 6089 329 329 4.47% 5.40%
C 7363 6089 0 0 0.00% 0.00%
D 7363 6089 24 24 0.33% 0.39%

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 9 143 167459 1074.39 780 765 155.2
A 15 174 92164 589.09 780 765 155.2
A 0 226 7017 40.29 780 765 155.2
B 3 112 1856409 13391.35 747 730 138.6
B 4 216 112059 803.4 747 730 138.6
B 0 189 62699 447.19 747 730 138.6
C 14 238 119033 701.16 734 738 168.7
C 3 233 118314 696.9 734 738 168.7
C 7 247 7689 41.2 734 738 168.7
D 1 52 449746 2511.77 751 731 178.8
D 10 70 172775 962.41 751 731 178.8
D 2 234 19493 104.95 751 731 178.8

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