ASTROSAT CZTI

Data Quality Report

Orbit 21612

Creation date: 2024-06-27T18:30:11.602832
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_094T01_9000003204_21612cztM0_level2.evt modeM0/AS1A05_094T01_9000003204_21612cztM0_level2_quad_clean.evt
Size (bytes)777,058,560142,490,880
Size741.1 MB 135.9 MB
Events in quadrant A5,051,494914,115
Events in quadrant B5,642,744937,237
Events in quadrant C5,076,877895,656
Events in quadrant D7,061,150851,148

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0214952
B0233362
C0215572
D0281032

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02120
B02120
C02120
D02120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A10354550.531196%
B103552332.250121%
C103551241.197489%
D103553383.264124%

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 12994 10357 0 0 0.00% 0.00%
B 12995 10357 70 70 0.54% 0.68%
C 12995 10357 0 0 0.00% 0.00%
D 12995 10358 238 238 1.83% 2.30%

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 13 254 14100 49.51 1310 1286 258.8
A 0 226 11422 39.16 1310 1286 258.8
A 3 137 10528 35.71 1310 1286 258.8
B 3 64 456895 1903.72 1300 1273 239.3
B 0 190 35470 142.89 1300 1273 239.3
B 12 111 28315 112.99 1300 1273 239.3
C 14 238 200802 691.29 1250 1257 288.7
C 13 61 8838 26.26 1250 1257 288.7
C 9 54 3305 7.09 1250 1257 288.7
D 1 52 1379607 4593.85 1247 1213 300.1
D 7 238 306193 1016.42 1247 1213 300.1
D 14 35 243372 807.06 1247 1213 300.1

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