ASTROSAT CZTI

Data Quality Report

Orbit 12244

Creation date: 2024-06-27T16:24:21.446332
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/AS1C03_014T03_9000001808_12244cztM0_level2.evt modeM0/AS1C03_014T03_9000001808_12244cztM0_level2_quad_clean.evt
Size (bytes)375,292,80098,124,480
Size357.9 MB 93.6 MB
Events in quadrant A2,960,584668,380
Events in quadrant B2,731,659674,109
Events in quadrant C2,456,488670,903
Events in quadrant D2,899,136630,240

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0119681
B0110361
C0104881
D0116951

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D070

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0920
B0920
C0920
D0920

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4676661.411463%
B46761242.651839%
C4676440.940975%
D46762014.298546%

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 4677 4677 8 8 0.17% 0.17%
B 4677 4677 62 62 1.33% 1.33%
C 4677 4677 18 18 0.38% 0.38%
D 4677 4677 126 126 2.69% 2.69%

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 13 251 211249 1812.71 584 575 116.2
A 1 162 181354 1555.48 584 575 116.2
A 1 178 103034 881.59 584 575 116.2
B 4 239 206020 1942.63 579 567 105.8
B 11 51 121195 1140.58 579 567 105.8
B 3 64 43536 406.29 579 567 105.8
C 15 208 201242 1551.49 566 569 129.3
C 4 175 30830 233.96 566 569 129.3
C 14 234 15537 115.72 566 569 129.3
D 1 52 545577 4143.79 558 545 131.5
D 2 33 74963 565.79 558 545 131.5
D 10 199 57933 436.31 558 545 131.5

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