ASTROSAT CZTI

Data Quality Report

Orbit 52132

Creation date: 2025-05-18T19:28:59.281385
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/AS1C09_011T07_9000006470_52132cztM0_level2.fits modeM0/AS1C09_011T07_9000006470_52132cztM0_level2_quad_clean.evt
Size (bytes)947,917,44073,160,640
Size904.0 MB 69.8 MB
Events in quadrant A4,352,058621,316
Events in quadrant B5,107,656640,320
Events in quadrant C8,819,829467,780
Events in quadrant D16,304,86730,890

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0171661
B0196791
C0307231
D0528931

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65182423.712795%
B65184727.241485%
C6518184328.275545%
D6519623795.674183%

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 7593 6519 198 198 2.61% 3.04%
B 7593 6519 313 313 4.12% 4.80%
C 7593 6519 1565 1565 20.61% 24.01%
D 7593 6518 5698 5698 75.04% 87.42%

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 4 95 438322 2526.11 693 677 173.2
A 7 206 174429 1002.91 693 677 173.2
A 11 3 168283 967.43 693 677 173.2
B 5 172 1171207 8155.41 669 646 143.5
B 4 81 382620 2661.25 669 646 143.5
B 0 216 301800 2098.17 669 646 143.5
C 15 224 4675789 28614.09 590 584 163.4
C 15 193 573354 3505.58 590 584 163.4
C 4 5 470525 2876.22 590 584 163.4
D 15 94 6851386 85281.85 277 265 80.3
D 6 42 5570465 69337.11 277 265 80.3
D 12 3 1806829 22487.87 277 265 80.3

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