ASTROSAT CZTI

Data Quality Report

Orbit 30340

Creation date: 2024-06-27T20:13:57.696507
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_053T14_9000004362_30340cztM0_level2.evt modeM0/AS1A10_053T14_9000004362_30340cztM0_level2_quad_clean.evt
Size (bytes)590,028,48088,254,720
Size562.7 MB 84.2 MB
Events in quadrant A3,795,768573,991
Events in quadrant B5,006,432581,160
Events in quadrant C3,550,557552,609
Events in quadrant D5,113,578548,865

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0157780
B0183560
C0143680
D0189250

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5959440.738379%
B5959981.644571%
C5959951.594227%
D596086814.563758%

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 7344 5960 0 0 0.00% 0.00%
B 7344 5960 6 6 0.08% 0.10%
C 7344 5960 2 2 0.03% 0.03%
D 7345 5961 789 789 10.74% 13.24%

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 5 203 555003 3331.66 836 823 166.3
A 8 192 13038 73.43 836 823 166.3
A 13 254 11361 63.35 836 823 166.3
B 6 159 1722793 11192.36 830 814 153.9
B 0 190 22038 137.95 830 814 153.9
B 12 111 18020 111.83 830 814 153.9
C 3 233 256609 1398.73 801 810 182.9
C 14 238 141939 771.71 801 810 182.9
C 2 114 14017 72.22 801 810 182.9
D 13 104 1877213 10749.72 738 722 174.6
D 2 250 152598 870.04 738 722 174.6
D 13 249 145138 827.31 738 722 174.6

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