ASTROSAT CZTI

Data Quality Report

Orbit 29481

Creation date: 2024-06-27T20:04:32.726196
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_064T03_9000004246_29481cztM0_level2.evt modeM0/AS1A10_064T03_9000004246_29481cztM0_level2_quad_clean.evt
Size (bytes)483,022,08084,438,720
Size460.6 MB 80.5 MB
Events in quadrant A2,124,781595,321
Events in quadrant B2,223,566608,465
Events in quadrant C2,329,063571,921
Events in quadrant D7,650,298469,021

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0920
B0920
C0920
D0920

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A091851
B094331
C096811
D0257981

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A443090.203160%
B4430290.654628%
C4430390.880361%
D4430123327.832957%

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 5530 4431 0 0 0.00% 0.00%
B 5530 4431 3 3 0.05% 0.07%
C 5530 4431 1 1 0.02% 0.02%
D 5530 4431 1194 1194 21.59% 26.95%

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 8734 73.3 549 539 111.8
A 3 137 5281 42.42 549 539 111.8
A 0 226 4620 36.5 549 539 111.8
B 0 230 48814 469.11 547 534 102.9
B 0 190 18265 172.28 547 534 102.9
B 12 111 12669 117.91 547 534 102.9
C 3 233 112670 901.61 529 532 124.4
C 14 238 87335 697.91 529 532 124.4
C 7 247 59013 470.2 529 532 124.4
D 8 195 4189179 37181.66 475 462 112.7
D 7 80 898812 7974.31 475 462 112.7
D 1 52 493675 4378.07 475 462 112.7

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