ASTROSAT CZTI

Data Quality Report

Orbit 03031

Creation date: 2024-06-27T14:23:42.786330
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/AS1G05_237T02_9000000422_03031cztM0_level2.evt modeM0/AS1G05_237T02_9000000422_03031cztM0_level2_quad_clean.evt
Size (bytes)338,143,68078,045,120
Size322.5 MB 74.4 MB
Events in quadrant A2,209,899490,160
Events in quadrant B2,520,500494,622
Events in quadrant C2,157,081519,283
Events in quadrant D3,003,721499,951

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0370
B0370
C0370
D0380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0104763
B0109812
C0104792
D0129852

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A512920.038994%
B5129390.760382%
C5129140.272958%
D51291042.027686%

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 7254 5130 0 0 0.00% 0.00%
B 7254 5130 24 24 0.33% 0.47%
C 7254 5130 12 12 0.17% 0.23%
D 7254 5130 114 114 1.57% 2.22%

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 50 167459 1563.57 519 508 106.8
A 13 251 12767 114.81 519 508 106.8
A 3 1 11945 107.11 519 508 106.8
B 15 204 234651 2298.9 532 518 101.8
B 2 249 62093 604.59 532 518 101.8
B 0 230 56235 547.07 532 518 101.8
C 6 80 89459 742.56 519 522 119.8
C 1 16 9717 76.77 519 522 119.8
C 5 96 5850 44.48 519 522 119.8
D 13 114 646860 4944.16 505 493 130.7
D 2 152 150481 1147.28 505 493 130.7
D 10 237 65309 495.79 505 493 130.7

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