ASTROSAT CZTI

Data Quality Report

Orbit 10699

Creation date: 2024-06-27T16:02:41.131107
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/AS1A03_053T01_9000001542_10699cztM0_level2.evt modeM0/AS1A03_053T01_9000001542_10699cztM0_level2_quad_clean.evt
Size (bytes)159,566,40018,720,000
Size152.2 MB 17.9 MB
Events in quadrant A985,319111,655
Events in quadrant B1,304,211108,577
Events in quadrant C847,456112,185
Events in quadrant D1,571,408102,632

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A041112
B050671
C038041
D059111

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0380
B0380
C0380
D0380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1790462.569832%
B17901437.988827%
C1790140.782123%
D1790663.687151%

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 2515 1791 15 15 0.60% 0.84%
B 2515 1791 56 56 2.23% 3.13%
C 2515 1791 0 0 0.00% 0.00%
D 2515 1791 32 32 1.27% 1.79%

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 100220 2143.18 219 214 46.7
A 15 239 14977 316.38 219 214 46.7
A 4 2 6943 144.21 219 214 46.7
B 4 239 369653 8341.16 218 213 44.3
B 15 204 19610 437.94 218 213 44.3
B 0 168 17515 390.64 218 213 44.3
C 8 128 3835 69.69 215 215 51.9
C 8 112 1991 34.19 215 215 51.9
C 13 61 1599 26.65 215 215 51.9
D 2 16 431465 8083.19 209 202 53.4
D 10 199 158522 2967.4 209 202 53.4
D 8 195 72632 1357.56 209 202 53.4

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