ASTROSAT CZTI

Data Quality Report

Orbit 29502

Creation date: 2024-06-27T20:04:59.621604
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_094T06_9000004248_29502cztM0_level2.evt modeM0/AS1A10_094T06_9000004248_29502cztM0_level2_quad_clean.evt
Size (bytes)505,808,64070,827,840
Size482.4 MB 67.5 MB
Events in quadrant A2,057,654506,185
Events in quadrant B2,209,533512,678
Events in quadrant C2,302,950497,926
Events in quadrant D8,459,986327,740

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A085720
B089860
C092640
D0280630

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0840
B0840
C0840
D0840

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A424920.047070%
B4250140.329412%
C4250290.682353%
D4250236955.741176%

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 4249 4249 0 0 0.00% 0.00%
B 4250 4250 4 4 0.09% 0.09%
C 4250 4250 2 2 0.05% 0.05%
D 4250 4250 2311 2311 54.38% 54.38%

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 8191 71.59 532 522 107.1
A 3 137 4616 38.22 532 522 107.1
A 0 226 4469 36.85 532 522 107.1
B 0 155 32683 330.36 527 515 97.4
B 0 190 32288 326.3 527 515 97.4
B 5 255 31120 314.31 527 515 97.4
C 3 233 154483 1316.7 511 517 116.9
C 14 238 86463 735.0 511 517 116.9
C 7 247 53651 454.4 511 517 116.9
D 8 195 3541640 37262.39 406 397 95.0
D 12 33 3168392 33334.93 406 397 95.0
D 7 80 88483 926.88 406 397 95.0

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