ASTROSAT CZTI

Data Quality Report

Orbit 19222

Creation date: 2024-06-27T18:00:08.670079
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_007T06_9000002844_19222cztM0_level2.evt modeM0/AS1A05_007T06_9000002844_19222cztM0_level2_quad_clean.evt
Size (bytes)233,881,92060,361,920
Size223.0 MB 57.6 MB
Events in quadrant A1,650,423398,873
Events in quadrant B1,658,258413,916
Events in quadrant C1,951,953401,474
Events in quadrant D1,608,485391,368

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0640
B0640
C0640
D0640

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A068811
B069171
C080361
D068191

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3125762.432000%
B3125812.592000%
C31241264.033291%
D3124621.984635%

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 4460 3126 4 4 0.09% 0.13%
B 4460 3126 0 0 0.00% 0.00%
C 4459 3125 1 1 0.02% 0.03%
D 4459 3125 3 3 0.07% 0.10%

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 33233 385.44 419 411 85.2
A 11 29 4284 45.48 419 411 85.2
A 13 254 4268 45.29 419 411 85.2
B 12 111 9231 110.71 422 411 79.7
B 0 229 8326 99.35 422 411 79.7
B 11 111 8086 96.34 422 411 79.7
C 3 233 285002 2980.38 409 412 95.5
C 14 238 64249 668.54 409 412 95.5
C 0 207 2910 26.16 409 412 95.5
D 1 52 18521 182.16 414 403 99.5
D 11 176 17968 176.6 414 403 99.5
D 2 234 12099 117.59 414 403 99.5

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