ASTROSAT CZTI

Data Quality Report

Orbit 11607

Creation date: 2024-06-27T16:15:50.338156
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/AS1C03_020T01_9000001706_11607cztM0_level2.evt modeM0/AS1C03_020T01_9000001706_11607cztM0_level2_quad_clean.evt
Size (bytes)607,527,36080,182,080
Size579.4 MB 76.5 MB
Events in quadrant A6,374,535467,789
Events in quadrant B4,684,525509,936
Events in quadrant C3,184,829515,391
Events in quadrant D3,727,185493,323

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0234223
B0180712
C0134322
D0150162

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6314106416.851441%
B63144096.477669%
C6314630.997783%
D63141221.932214%

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 7550 6316 615 615 8.15% 9.74%
B 7550 6316 189 189 2.50% 2.99%
C 7550 6316 0 0 0.00% 0.00%
D 7550 6316 34 34 0.45% 0.54%

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 5 2927947 18395.93 789 774 159.1
A 1 162 139550 872.14 789 774 159.1
A 1 178 81263 505.84 789 774 159.1
B 4 239 1243808 7898.72 837 821 157.4
B 15 204 42840 267.02 837 821 157.4
B 4 81 42443 264.49 837 821 157.4
C 13 61 5949 27.35 816 822 187.4
C 12 4 2897 11.07 816 822 187.4
C 3 202 1966 6.1 816 822 187.4
D 1 52 447811 2311.3 814 794 193.4
D 13 104 82440 422.15 814 794 193.4
D 8 195 33055 166.8 814 794 193.4

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