ASTROSAT CZTI

Data Quality Report

Orbit 29016

Creation date: 2024-06-27T19:59:12.534097
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/AS1A10_103T04_9000004158_29016cztM0_level2.evt modeM0/AS1A10_103T04_9000004158_29016cztM0_level2_quad_clean.evt
Size (bytes)1,455,249,600244,981,440
Size1.4 GB 233.6 MB
Events in quadrant A9,126,0801,584,631
Events in quadrant B9,330,4261,600,870
Events in quadrant C9,219,9821,512,383
Events in quadrant D15,102,0251,401,862

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0394344
B0396714
C0394314
D0576344

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03880
B03880
C03880
D03880

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A191653271.706235%
B191663912.040071%
C191663761.961807%
D1916613346.960242%

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 21220 19169 0 0 0.00% 0.00%
B 21221 19170 4 4 0.02% 0.02%
C 21221 19170 7 7 0.03% 0.04%
D 21221 19170 1082 1082 5.10% 5.64%

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 1 113 72766 150.22 2335 2281 469.2
A 12 210 37189 74.4 2335 2281 469.2
A 13 254 32553 64.52 2335 2281 469.2
B 10 246 95162 207.9 2313 2251 446.9
B 0 229 58765 126.45 2313 2251 446.9
B 12 111 57158 122.86 2313 2251 446.9
C 14 238 356356 673.43 2236 2245 525.8
C 2 16 72142 132.93 2236 2245 525.8
C 3 233 46081 83.37 2236 2245 525.8
D 1 52 4508079 8633.6 2197 2135 521.9
D 8 195 1680324 3215.49 2197 2135 521.9
D 13 104 255913 486.25 2197 2135 521.9

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