ASTROSAT CZTI

Data Quality Report

Orbit 29452

Creation date: 2024-06-27T20:04:14.959377
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_094T01_9000004236_29452cztM0_level2.evt modeM0/AS1A10_094T01_9000004236_29452cztM0_level2_quad_clean.evt
Size (bytes)593,568,00072,388,800
Size566.1 MB 69.0 MB
Events in quadrant A2,194,507528,004
Events in quadrant B2,335,202538,120
Events in quadrant C2,463,742499,502
Events in quadrant D10,662,630293,450

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0960
B0960
C0960
D0960

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A095771
B099261
C0102421
D0349001

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4718160.339127%
B4718300.635863%
C47182515.320051%
D4718354075.031793%

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 5643 4719 0 0 0.00% 0.00%
B 5643 4719 2 2 0.04% 0.04%
C 5643 4719 0 0 0.00% 0.00%
D 5643 4719 3392 3392 60.11% 71.88%

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 8821 72.16 567 555 114.5
A 3 137 5553 43.63 567 555 114.5
A 0 226 4729 36.44 567 555 114.5
B 0 229 44859 411.33 565 551 107.7
B 0 230 27000 245.54 565 551 107.7
B 0 190 15887 142.37 565 551 107.7
C 14 238 169528 1330.7 534 536 127.0
C 14 254 111347 872.57 534 536 127.0
C 3 233 87533 685.05 534 536 127.0
D 8 195 4964829 53804.84 381 369 92.3
D 12 33 2208856 23935.59 381 369 92.3
D 1 52 946779 10257.2 381 369 92.3

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