ASTROSAT CZTI

Data Quality Report

Orbit 05834

Creation date: 2024-06-27T14:59:41.483192
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/AS1G06_052T01_9000000754_05834cztM0_level2.evt modeM0/AS1G06_052T01_9000000754_05834cztM0_level2_quad_clean.evt
Size (bytes)415,445,76073,765,440
Size396.2 MB 70.3 MB
Events in quadrant A3,819,947460,552
Events in quadrant B2,819,230470,978
Events in quadrant C2,595,082459,226
Events in quadrant D2,949,949434,578

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0154122
B0121897
C0119565
D0128905

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A58455178.845167%
B5842761.300924%
C5843490.838610%
D5843851.454732%

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 7025 5846 334 334 4.75% 5.71%
B 7025 5846 0 0 0.00% 0.00%
C 7025 5846 0 0 0.00% 0.00%
D 7025 5846 20 20 0.28% 0.34%

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 15 236 1267522 9408.27 656 640 134.7
A 15 223 13939 98.76 656 640 134.7
A 15 234 7839 53.46 656 640 134.7
B 15 204 81493 626.67 686 669 129.0
B 4 81 41285 314.92 686 669 129.0
B 0 219 28073 212.48 686 669 129.0
C 14 67 28860 188.15 653 656 149.9
C 1 16 13791 87.63 653 656 149.9
C 13 61 5238 30.57 653 656 149.9
D 2 152 268781 1693.38 652 631 158.4
D 11 241 112888 708.91 652 631 158.4
D 9 85 58846 367.63 652 631 158.4

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