ASTROSAT CZTI

Data Quality Report

Orbit 09988

Creation date: 2024-06-27T15:53:23.053431
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/AS1G07_074T01_9000001426_09988cztM0_level2.evt modeM0/AS1G07_074T01_9000001426_09988cztM0_level2_quad_clean.evt
Size (bytes)515,689,92083,252,160
Size491.8 MB 79.4 MB
Events in quadrant A4,055,512479,103
Events in quadrant B3,232,966555,721
Events in quadrant C2,764,991552,910
Events in quadrant D5,152,440509,709

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A016243205
B013889154
C01257075
D019709268

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01242
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A605787214.396566%
B6056831.370542%
C6076100.164582%
D60494988.232766%

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 7416 6091 290 290 3.91% 4.76%
B 7416 6104 31 31 0.42% 0.51%
C 7416 6112 0 0 0.00% 0.00%
D 7416 6098 477 477 6.43% 7.82%

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 14 111 1450687 10736.99 659 646 135.1
A 8 15 37134 270.18 659 646 135.1
A 15 174 34397 249.91 659 646 135.1
B 4 81 146405 1052.62 728 711 138.4
B 4 239 78341 560.87 728 711 138.4
B 0 219 50589 360.36 728 711 138.4
C 14 234 8752 49.63 703 708 162.1
C 8 208 6683 36.87 703 708 162.1
C 13 61 5384 28.85 703 708 162.1
D 1 52 2008764 11405.61 666 648 176.1
D 8 195 274807 1557.16 666 648 176.1
D 2 16 170534 964.91 666 648 176.1

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