ASTROSAT CZTI

Data Quality Report

Orbit 21119

Creation date: 2024-06-27T18:23:49.786959
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_104T05_9000003120_21119cztM0_level2.evt modeM0/AS1A05_104T05_9000003120_21119cztM0_level2_quad_clean.evt
Size (bytes)560,931,84079,813,440
Size534.9 MB 76.1 MB
Events in quadrant A3,744,734518,853
Events in quadrant B3,562,386520,479
Events in quadrant C3,082,076491,118
Events in quadrant D6,187,559462,265

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0200
C0200
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148061
B0141531
C0126991
D0227641

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60711752.882556%
B60711452.388404%
C6071350.576511%
D60714196.901664%

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 7456 6072 138 138 1.85% 2.27%
B 7456 6072 71 71 0.95% 1.17%
C 7456 6072 0 0 0.00% 0.00%
D 7456 6072 359 359 4.81% 5.91%

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 15 192 709164 4520.76 787 773 156.7
A 13 254 8475 49.15 787 773 156.7
A 0 226 6687 37.74 787 773 156.7
B 0 228 162218 1087.88 793 777 148.4
B 7 220 146594 982.59 793 777 148.4
B 0 219 64651 430.42 793 777 148.4
C 14 238 121652 684.17 759 765 176.7
C 13 61 5321 25.79 759 765 176.7
C 3 202 1803 5.87 759 765 176.7
D 1 239 1463338 8074.58 742 722 181.1
D 5 222 914436 5044.29 742 722 181.1
D 1 20 574999 3170.38 742 722 181.1

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