ASTROSAT CZTI

Data Quality Report

Orbit 14289

Creation date: 2024-06-27T16:53:00.237197
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/AS1A04_231T01_9000002106_14289cztM0_level2.evt modeM0/AS1A04_231T01_9000002106_14289cztM0_level2_quad_clean.evt
Size (bytes)236,393,28034,030,080
Size225.4 MB 32.5 MB
Events in quadrant A1,390,491211,610
Events in quadrant B1,505,030214,194
Events in quadrant C1,525,809212,889
Events in quadrant D2,555,881201,224

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0560
B0560
C0560
D0560

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A057462
B060981
C061311
D094671

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A26491164.379011%
B26491314.945262%
C2649572.151755%
D26492639.928275%

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 3210 2651 9 9 0.28% 0.34%
B 3210 2651 13 13 0.40% 0.49%
C 3210 2651 1 1 0.03% 0.04%
D 3210 2650 66 66 2.06% 2.49%

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 55678 783.9 342 333 70.6
A 8 15 14751 204.22 342 333 70.6
A 0 226 3151 39.91 342 333 70.6
B 0 229 104616 1581.42 337 328 65.9
B 10 245 21379 319.22 337 328 65.9
B 0 219 17424 259.24 337 328 65.9
C 3 233 225316 2915.66 332 332 77.2
C 14 234 2387 26.63 332 332 77.2
C 13 61 2278 25.22 332 332 77.2
D 13 122 829313 10527.07 328 319 78.7
D 5 222 288893 3664.49 328 319 78.7
D 12 110 114977 1456.0 328 319 78.7

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