ASTROSAT CZTI

Data Quality Report

Orbit 15003

Creation date: 2024-06-27T17:02:24.043569
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/AS1T02_056T01_9000002210_15003cztM0_level2.evt modeM0/AS1T02_056T01_9000002210_15003cztM0_level2_quad_clean.evt
Size (bytes)895,763,520165,263,040
Size854.3 MB 157.6 MB
Events in quadrant A6,836,7491,044,320
Events in quadrant B6,967,7881,050,487
Events in quadrant C6,070,6071,033,901
Events in quadrant D6,398,3451,003,523

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0286923
B0290032
C0260122
D0280032

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02580
B02580
C02580
D02580

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A12626980.776176%
B126262461.948361%
C12626290.229685%
D126261881.488991%

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 13983 12629 4 4 0.03% 0.03%
B 13983 12629 147 147 1.05% 1.16%
C 13983 12629 0 0 0.00% 0.00%
D 13983 12629 136 136 0.97% 1.08%

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 1 162 354379 1172.7 1479 1446 301.0
A 12 189 268242 886.49 1479 1446 301.0
A 1 178 166827 549.52 1479 1446 301.0
B 10 16 664519 2363.14 1472 1430 280.6
B 3 64 217781 771.04 1472 1430 280.6
B 0 229 65628 228.79 1472 1430 280.6
C 3 233 430403 1292.54 1435 1447 331.9
C 8 128 12713 33.95 1435 1447 331.9
C 13 61 10480 27.22 1435 1447 331.9
D 7 38 744232 1987.21 1426 1388 373.8
D 15 0 79329 208.5 1426 1388 373.8
D 2 234 56507 147.45 1426 1388 373.8

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