ASTROSAT CZTI

Data Quality Report

Orbit 04011

Creation date: 2024-06-27T14:36:19.093364
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/AS1G05_173T01_9000000514_04011cztM0_level2.evt modeM0/AS1G05_173T01_9000000514_04011cztM0_level2_quad_clean.evt
Size (bytes)404,173,44060,111,360
Size385.4 MB 57.3 MB
Events in quadrant A2,994,010344,208
Events in quadrant B3,014,192348,935
Events in quadrant C2,886,710344,902
Events in quadrant D2,909,361334,659

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0230

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133253
B0132112
C0131162
D0134792

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6407540.842828%
B6407440.686749%
C6407400.624317%
D6407290.452630%

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 7552 6408 20 20 0.26% 0.31%
B 7552 6408 2 2 0.03% 0.03%
C 7552 6408 9 9 0.12% 0.14%
D 7552 6408 18 18 0.24% 0.28%

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 13 251 48849 313.35 746 729 153.6
A 3 1 25675 162.45 746 729 153.6
A 0 50 20799 130.69 746 729 153.6
B 15 204 30160 204.1 757 739 144.1
B 4 81 22700 152.35 757 739 144.1
B 7 252 18553 123.58 757 739 144.1
C 9 144 37205 217.47 725 729 167.7
C 14 67 16680 95.1 725 729 167.7
C 13 61 6008 31.47 725 729 167.7
D 2 63 78663 450.77 719 697 173.0
D 2 232 33262 188.28 719 697 173.0
D 2 206 26446 148.87 719 697 173.0

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