ASTROSAT CZTI

Data Quality Report

Orbit 00363

Creation date: 2024-06-27T13:59:05.523041
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/AS1P01_161T05_9000000050_00363cztM0_level2.evt modeM0/AS1P01_161T05_9000000050_00363cztM0_level2_quad_clean.evt
Size (bytes)800,285,76043,781,760
Size763.2 MB 41.8 MB
Events in quadrant A8,430,943252,232
Events in quadrant B5,555,883271,283
Events in quadrant C4,360,836271,807
Events in quadrant D5,630,856253,934

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0278390
B0193290
C0157290
D0194820

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0800
B0800
C0800
D0800

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A390748112.311236%
B39073158.062452%
C3907230.588687%
D39071323.378551%

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 3907 3907 2195 2195 56.18% 56.18%
B 3907 3907 540 540 13.82% 13.82%
C 3907 3907 71 71 1.82% 1.82%
D 3907 3907 543 543 13.90% 13.90%

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 15 216 3402598 13770.55 1109 1099 247.0
A 0 69 498715 2014.54 1109 1099 247.0
A 12 150 110541 443.06 1109 1099 247.0
B 2 2 883362 3412.64 1111 1116 258.5
B 7 220 143600 551.15 1111 1116 258.5
B 0 234 100297 383.65 1111 1116 258.5
C 4 253 168095 571.88 1045 1084 292.0
C 1 1 43500 145.24 1045 1084 292.0
C 3 159 9870 30.09 1045 1084 292.0
D 7 85 1070851 3422.37 1002 1040 312.6
D 2 152 225411 717.77 1002 1040 312.6
D 14 52 88443 279.61 1002 1040 312.6

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