ASTROSAT CZTI

Data Quality Report

Orbit 17075

Creation date: 2024-06-27T17:31:43.121088
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_004T04_9000002534_17075cztM0_level2.evt modeM0/AS1A05_004T04_9000002534_17075cztM0_level2_quad_clean.evt
Size (bytes)343,506,24059,520,960
Size327.6 MB 56.8 MB
Events in quadrant A2,181,156375,205
Events in quadrant B2,327,921378,585
Events in quadrant C2,283,569362,783
Events in quadrant D3,282,036347,245

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A098731
B0102541
C099621
D0134121

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4813300.623312%
B4813430.893414%
C4813430.893414%
D48122174.509559%

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 5868 4814 0 0 0.00% 0.00%
B 5868 4814 2 2 0.03% 0.04%
C 5868 4814 0 0 0.00% 0.00%
D 5867 4813 160 160 2.73% 3.32%

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 0 226 5064 39.16 567 555 115.1
A 12 194 4172 31.41 567 555 115.1
A 3 137 4123 30.99 567 555 115.1
B 0 189 65562 592.53 569 555 109.7
B 0 197 17366 153.23 569 555 109.7
B 6 36 13220 115.44 569 555 109.7
C 14 238 85315 656.48 548 552 129.1
C 3 233 53005 406.24 548 552 129.1
C 7 247 8656 62.76 548 552 129.1
D 5 222 1124877 8492.19 547 532 132.4
D 15 0 36123 268.82 547 532 132.4
D 10 70 33924 252.21 547 532 132.4

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