ASTROSAT CZTI

Data Quality Report

Orbit 28076

Creation date: 2024-06-27T19:47:46.829118
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/AS1A10_073T01_9000004056_28076cztM0_level2.evt modeM0/AS1A10_073T01_9000004056_28076cztM0_level2_quad_clean.evt
Size (bytes)722,738,880127,437,120
Size689.3 MB 121.5 MB
Events in quadrant A3,187,215901,979
Events in quadrant B6,242,904855,843
Events in quadrant C5,524,834830,930
Events in quadrant D6,473,287795,497

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139890
B0232150
C0212820
D0240870

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6818120.176005%
B681873110.721619%
C68185638.257554%
D681878711.542974%

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 7763 6819 2 2 0.03% 0.03%
B 7763 6819 448 448 5.77% 6.57%
C 7763 6819 283 283 3.65% 4.15%
D 7763 6819 612 612 7.88% 8.97%

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 0 13 53195 322.71 808 792 162.4
A 13 254 11428 65.5 808 792 162.4
A 3 137 7802 43.17 808 792 162.4
B 10 245 3143105 21389.27 778 759 146.9
B 12 111 18161 118.45 778 759 146.9
B 11 111 16072 104.23 778 759 146.9
C 3 233 2427793 13501.48 763 766 179.8
C 14 238 122407 676.69 763 766 179.8
C 13 61 5136 24.31 763 766 179.8
D 1 52 2290295 13029.86 740 719 175.7
D 8 195 747359 4249.09 740 719 175.7
D 2 250 402790 2288.17 740 719 175.7

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