ASTROSAT CZTI

Data Quality Report

Orbit 29526

Creation date: 2024-06-27T20:05:02.944410
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/AS1A10_073T07_9000004254_29526cztM0_level2.evt modeM0/AS1A10_073T07_9000004254_29526cztM0_level2_quad_clean.evt
Size (bytes)399,242,88060,304,320
Size380.7 MB 57.5 MB
Events in quadrant A1,779,632406,460
Events in quadrant B1,855,434424,692
Events in quadrant C1,893,790397,825
Events in quadrant D6,319,836344,014

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0817
B0808
C0806
D0828

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B031
C020
D031

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A08450894
B08712919
C08794957
D0238272629

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A358430.083705%
B3590120.334262%
C35761514.222595%
D349686324.685355%

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 7589 3652 0 0 0.00% 0.00%
B 7589 3664 1 1 0.01% 0.03%
C 7589 3654 0 0 0.00% 0.00%
D 7589 3556 1210 1210 15.94% 34.03%

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 13 254 7006 69.74 459 450 94.0
A 0 13 6135 60.48 459 450 94.0
A 3 137 4636 44.53 459 450 94.0
B 5 255 11286 121.47 466 456 89.2
B 12 111 10871 116.81 466 456 89.2
B 0 190 9688 103.54 466 456 89.2
C 14 238 102179 969.93 441 444 104.9
C 14 254 42761 403.44 441 444 104.9
C 3 233 19091 177.78 441 444 104.9
D 8 195 4584382 45602.14 412 401 100.5
D 2 250 63051 623.25 412 401 100.5
D 7 223 58943 582.38 412 401 100.5

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