ASTROSAT CZTI

Data Quality Report

Orbit 33437

Creation date: 2024-06-27T20:48:49.840484
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/AS1A11_065T01_9000004794_33437cztM0_level2.evt modeM0/AS1A11_065T01_9000004794_33437cztM0_level2_quad_clean.evt
Size (bytes)463,173,12049,187,520
Size441.7 MB 46.9 MB
Events in quadrant A1,987,567319,861
Events in quadrant B3,966,467295,407
Events in quadrant C2,273,822312,784
Events in quadrant D5,521,645272,068

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0840
B0840
C0840
D0840

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A082602
B0144091
C091061
D0192181

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A409540.097680%
B409562615.286935%
C4095431.050061%
D409582220.073260%

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 6128 4096 0 0 0.00% 0.00%
B 6128 4096 547 547 8.93% 13.35%
C 6128 4096 39 39 0.64% 0.95%
D 6128 4096 880 880 14.36% 21.48%

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 15 47 41543 408.95 501 492 100.4
A 13 6 7818 72.98 501 492 100.4
A 13 254 7638 71.19 501 492 100.4
B 5 172 1585835 17588.53 470 459 90.1
B 4 251 373904 4143.09 470 459 90.1
B 15 85 65154 717.74 470 459 90.1
C 15 214 174579 1595.4 475 479 109.1
C 14 254 123426 1126.65 475 479 109.1
C 1 23 62254 566.09 475 479 109.1
D 1 52 2528071 23435.9 440 427 107.9
D 8 195 1127297 10448.16 440 427 107.9
D 13 249 49154 451.79 440 427 107.9

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