ASTROSAT CZTI

Data Quality Report

Orbit 33307

Creation date: 2024-06-27T20:47:18.740407
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/AS1T04_072T01_9000004780_33307cztM0_level2.evt modeM0/AS1T04_072T01_9000004780_33307cztM0_level2_quad_clean.evt
Size (bytes)531,132,48067,809,600
Size506.5 MB 64.7 MB
Events in quadrant A2,686,693454,340
Events in quadrant B4,306,238418,397
Events in quadrant C4,457,777422,673
Events in quadrant D4,297,563407,971

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0108113
B0160752
C0168382
D0164312

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0350
B0350
C0350
D0360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A498390.180614%
B498354510.937186%
C49832725.458559%
D49831402.809552%

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 7046 4984 0 0 0.00% 0.00%
B 7046 4984 397 397 5.63% 7.97%
C 7046 4984 245 245 3.48% 4.92%
D 7046 4984 126 126 1.79% 2.53%

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 15 169 22322 161.12 685 676 134.3
A 15 174 11837 83.08 685 676 134.3
A 13 6 8945 61.55 685 676 134.3
B 5 172 1327066 11098.35 651 639 119.5
B 0 219 214670 1790.82 651 639 119.5
B 0 190 116456 969.05 651 639 119.5
C 10 49 1293946 8903.93 636 641 145.3
C 15 208 264352 1815.55 636 641 145.3
C 15 214 229001 1572.17 636 641 145.3
D 8 195 741291 4674.53 648 630 158.4
D 2 250 464271 2926.17 648 630 158.4
D 7 222 187002 1176.25 648 630 158.4

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