ASTROSAT CZTI

Data Quality Report

Orbit 20514

Creation date: 2024-06-27T18:16:17.719332
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/AS1A05_115T03_9000003032_20514cztM0_level2.evt modeM0/AS1A05_115T03_9000003032_20514cztM0_level2_quad_clean.evt
Size (bytes)565,367,04076,109,760
Size539.2 MB 72.6 MB
Events in quadrant A3,992,682457,243
Events in quadrant B4,006,495460,683
Events in quadrant C3,524,471444,354
Events in quadrant D5,099,955430,332

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0165991
B0165471
C0151101
D0201481

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73472223.021641%
B73472202.994419%
C73471562.123316%
D73482933.987480%

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 7727 7347 50 50 0.65% 0.68%
B 7727 7347 33 33 0.43% 0.45%
C 7727 7347 0 0 0.00% 0.00%
D 7728 7348 197 197 2.55% 2.68%

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 5 16 464778 2559.73 888 867 181.2
A 12 96 103718 567.5 888 867 181.2
A 13 254 8047 39.62 888 867 181.2
B 7 220 167004 953.71 897 873 174.2
B 10 246 80044 454.5 897 873 174.2
B 0 197 68485 388.14 897 873 174.2
C 14 238 133367 652.11 859 862 203.2
C 7 220 33738 161.8 859 862 203.2
C 3 233 9945 44.7 859 862 203.2
D 1 52 412921 1980.91 856 832 208.0
D 7 238 375215 1799.66 856 832 208.0
D 13 153 333673 1599.97 856 832 208.0

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