ASTROSAT CZTI

Data Quality Report

Orbit 28140

Creation date: 2024-06-27T19:48:30.433936
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_045T04_9000004066_28140cztM0_level2.evt modeM0/AS1A10_045T04_9000004066_28140cztM0_level2_quad_clean.evt
Size (bytes)470,445,12086,935,680
Size448.7 MB 82.9 MB
Events in quadrant A3,074,880562,105
Events in quadrant B3,498,997577,900
Events in quadrant C3,084,284547,145
Events in quadrant D4,183,011527,423

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0125350
B0139480
C0125370
D0162310

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5985410.685046%
B59851212.021721%
C5985721.203008%
D59852333.893066%

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 7270 5986 1 1 0.01% 0.02%
B 7270 5986 52 52 0.72% 0.87%
C 7270 5986 1 1 0.01% 0.02%
D 7270 5986 203 203 2.79% 3.39%

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 28841 179.21 785 772 156.6
A 0 13 13792 83.13 785 772 156.6
A 13 254 10749 63.7 785 772 156.6
B 15 32 384686 2612.75 775 757 146.9
B 10 245 25175 166.17 775 757 146.9
B 4 200 20601 135.04 775 757 146.9
C 14 238 122922 697.23 749 755 175.2
C 3 233 25183 139.41 749 755 175.2
C 2 16 14830 80.33 749 755 175.2
D 1 52 437723 2455.7 745 728 178.0
D 12 233 422111 2367.97 745 728 178.0
D 2 250 250461 1403.38 745 728 178.0

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