ASTROSAT CZTI

Data Quality Report

Orbit 20247

Creation date: 2024-06-27T18:12:57.899879
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/AS1T03_123T01_9000003000_20247cztM0_level2.evt modeM0/AS1T03_123T01_9000003000_20247cztM0_level2_quad_clean.evt
Size (bytes)475,787,52096,667,200
Size453.7 MB 92.2 MB
Events in quadrant A3,251,102631,186
Events in quadrant B3,260,886643,588
Events in quadrant C3,255,148601,658
Events in quadrant D4,193,883590,857

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138322
B0137942
C0138892
D0168232

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6601580.878655%
B6601731.105893%
C6601951.439176%
D66011962.969247%

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 8771 6603 7 7 0.08% 0.11%
B 8771 6603 0 0 0.00% 0.00%
C 8771 6603 1 1 0.01% 0.02%
D 8771 6603 176 176 2.01% 2.67%

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 15 191 25361 146.95 836 822 167.0
A 12 96 10371 57.18 836 822 167.0
A 0 226 7145 37.87 836 822 167.0
B 12 111 19601 119.01 831 811 157.9
B 11 111 17566 106.12 831 811 157.9
B 14 111 16454 99.08 831 811 157.9
C 14 238 125416 667.48 796 802 186.7
C 1 16 7213 34.34 796 802 186.7
C 3 233 7192 34.23 796 802 186.7
D 1 52 1115381 5733.51 803 783 194.4
D 2 184 37511 188.93 803 783 194.4
D 2 234 28793 144.08 803 783 194.4

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