ASTROSAT CZTI

Data Quality Report

Orbit 20230925_A06_006T01_9000005860_level2

Creation date: 2023-09-30T14:57:32.642649
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/AS1A06_006T01_9000005860cztM0_level2.fits modeM0/AS1A06_006T01_9000005860cztM0_level2_quad_clean.evt
Size (bytes)2,343,856,3202,474,043,840
Size2.2 GB 2.3 GB
Events in quadrant A13,756,25414,526,999
Events in quadrant B13,473,51415,271,275
Events in quadrant C13,808,77214,209,382
Events in quadrant D11,674,24012,659,246

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A054600
B054600
C054600
D054600

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A09950
B09950
C09950
D09950

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A06428580
B05434700
C05645140
D06986360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A26663867912.546899%
B2666387340.275280%
C26663816270.610191%
D266638126874.758136%

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 366547 266089 0 0 0.00% 0.00%
B 366547 266637 0 0 0.00% 0.00%
C 366547 266594 0 0 0.00% 0.00%
D 366547 265638 0 0 0.00% 0.00%

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 29 11500 9.07 3588 3340 900.0
A 9 19 11464 9.03 3588 3340 900.0
A 7 110 11315 8.86 3588 3340 900.0
B 2 9 11879 12.25 3558 3379 694.0
B 3 80 9702 9.11 3558 3379 694.0
B 2 8 9533 8.87 3558 3379 694.0
C 1 81 11408 8.69 3648 3409 920.9
C 1 80 11123 8.38 3648 3409 920.9
C 3 203 10746 7.97 3648 3409 920.9
D 7 3 8570 6.27 3346 3049 880.6
D 4 160 8477 6.16 3346 3049 880.6
D 10 189 8473 6.16 3346 3049 880.6

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