ASTROSAT CZTI

Data Quality Report

Orbit 10104

Creation date: 2024-06-27T15:55:05.165982
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/AS1G07_065T01_9000001454_10104cztM0_level2.evt modeM0/AS1G07_065T01_9000001454_10104cztM0_level2_quad_clean.evt
Size (bytes)305,043,84048,945,600
Size290.9 MB 46.7 MB
Events in quadrant A2,076,749301,701
Events in quadrant B2,207,559305,285
Events in quadrant C2,015,915296,517
Events in quadrant D2,647,389278,333

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090252
B093561
C089631
D0106151

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0860
B0860
C0860
D0860

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A42621072.510558%
B42621122.627874%
C4262811.900516%
D42621553.636790%

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 5407 4262 0 0 0.00% 0.00%
B 5407 4262 1 1 0.02% 0.02%
C 5407 4262 0 0 0.00% 0.00%
D 5407 4263 67 67 1.24% 1.57%

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 15 223 16688 146.57 534 522 110.3
A 0 226 4918 39.86 534 522 110.3
A 12 194 4422 35.36 534 522 110.3
B 0 219 41801 395.65 536 523 104.3
B 4 81 16813 156.14 536 523 104.3
B 4 80 16193 150.2 536 523 104.3
C 13 61 3850 27.45 516 519 121.3
C 4 175 2210 13.94 516 519 121.3
C 8 222 1964 11.91 516 519 121.3
D 1 52 210436 1685.12 510 497 124.6
D 12 233 181556 1453.31 510 497 124.6
D 8 195 156885 1255.28 510 497 124.6

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