ASTROSAT CZTI

Data Quality Report

Orbit 06599

Creation date: 2024-06-27T15:09:14.224113
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/AS1G06_028T01_9000000890_06599cztM0_level2.evt modeM0/AS1G06_028T01_9000000890_06599cztM0_level2_quad_clean.evt
Size (bytes)543,565,44069,312,960
Size518.4 MB 66.1 MB
Events in quadrant A3,147,778422,830
Events in quadrant B3,893,570421,701
Events in quadrant C3,121,269424,220
Events in quadrant D5,868,003385,626

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133033
B0155432
C0133282
D0219322

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6370330.518053%
B63702574.034537%
C6370340.533752%
D63704166.530612%

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 7700 6371 0 0 0.00% 0.00%
B 7700 6371 166 166 2.16% 2.61%
C 7700 6371 0 0 0.00% 0.00%
D 7700 6371 312 312 4.05% 4.90%

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 8 15 18933 111.58 811 798 162.5
A 0 226 7716 42.57 811 798 162.5
A 12 194 7471 41.06 811 798 162.5
B 3 220 606216 3984.07 811 798 152.0
B 0 219 75202 489.63 811 798 152.0
B 4 81 57579 373.66 811 798 152.0
C 1 16 8419 41.79 794 801 182.3
C 9 54 7682 37.75 794 801 182.3
C 13 61 6111 29.13 794 801 182.3
D 8 195 1748277 9328.11 768 745 187.3
D 13 105 930321 4961.96 768 745 187.3
D 2 63 58532 308.46 768 745 187.3

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