ASTROSAT CZTI

Data Quality Report

Orbit 07338

Creation date: 2024-06-27T15:18:42.457240
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_157T02_9000001008_07338cztM0_level2.evt modeM0/AS1G06_157T02_9000001008_07338cztM0_level2_quad_clean.evt
Size (bytes)434,237,760102,090,240
Size414.1 MB 97.4 MB
Events in quadrant A3,081,497664,670
Events in quadrant B3,238,251686,447
Events in quadrant C2,996,414670,180
Events in quadrant D3,408,687632,937

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133363
B0138922
C0130612
D0145312

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6275600.956175%
B6275731.163347%
C6275400.637450%
D6275821.306773%

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 7605 6276 10 10 0.13% 0.16%
B 7605 6276 10 10 0.13% 0.16%
C 7605 6276 0 0 0.00% 0.00%
D 7605 6276 32 32 0.42% 0.51%

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 15 234 110655 701.39 772 758 156.7
A 0 226 7512 43.11 772 758 156.7
A 12 194 6864 38.97 772 758 156.7
B 0 214 121941 819.85 788 771 147.8
B 11 51 24793 162.53 788 771 147.8
B 4 81 20489 133.41 788 771 147.8
C 9 68 25091 138.65 760 767 175.4
C 13 61 5991 29.78 760 767 175.4
C 8 222 3125 13.44 760 767 175.4
D 12 221 274566 1497.8 746 723 182.8
D 13 105 146018 794.7 746 723 182.8
D 2 14 62054 335.45 746 723 182.8

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