ASTROSAT CZTI

Data Quality Report

Orbit 17584

Creation date: 2024-06-27T17:38:16.123050
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/AS1A05_056T01_9000002604_17584cztM0_level2.evt modeM0/AS1A05_056T01_9000002604_17584cztM0_level2_quad_clean.evt
Size (bytes)451,316,16079,790,400
Size430.4 MB 76.1 MB
Events in quadrant A3,165,137499,841
Events in quadrant B3,177,989510,035
Events in quadrant C3,430,776487,407
Events in quadrant D3,464,837477,772

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0190
C0190
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132782
B0132502
C0140122
D0143872

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6315550.870942%
B6315610.965954%
C6315731.155978%
D6315781.235154%

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 7485 6315 14 14 0.19% 0.22%
B 7485 6315 0 0 0.00% 0.00%
C 7485 6315 0 0 0.00% 0.00%
D 7485 6315 37 37 0.49% 0.59%

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 15 174 40176 244.29 805 789 161.2
A 14 237 23826 142.88 805 789 161.2
A 0 13 8367 47.0 805 789 161.2
B 12 111 18501 116.48 812 792 152.0
B 11 111 15848 99.03 812 792 152.0
B 14 111 13939 86.47 812 792 152.0
C 3 233 182712 990.47 787 793 183.7
C 14 238 122483 662.55 787 793 183.7
C 5 218 48319 258.76 787 793 183.7
D 13 189 216268 1111.76 791 768 193.8
D 5 222 116113 595.06 791 768 193.8
D 1 52 114676 587.65 791 768 193.8

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