ASTROSAT CZTI

Data Quality Report

Orbit 22309

Creation date: 2024-06-27T18:39:19.675278
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/AS1A07_049T01_9000003298_22309cztM0_level2.evt modeM0/AS1A07_049T01_9000003298_22309cztM0_level2_quad_clean.evt
Size (bytes)295,718,40068,186,880
Size282.0 MB 65.0 MB
Events in quadrant A2,144,746442,906
Events in quadrant B2,194,387450,242
Events in quadrant C2,133,480425,368
Events in quadrant D2,164,256418,081

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0940
B0940
C0940
D0940

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A094361
B094781
C094311
D096831

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A466760.128562%
B4668240.514139%
C4668340.728363%
D4668160.342759%

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 4667 4667 0 0 0.00% 0.00%
B 4668 4668 0 0 0.00% 0.00%
C 4668 4668 0 0 0.00% 0.00%
D 4668 4668 6 6 0.13% 0.13%

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 8 6 17077 148.62 550 538 111.3
A 4 2 6764 55.94 550 538 111.3
A 13 254 5859 47.81 550 538 111.3
B 3 64 24852 233.15 548 536 104.3
B 12 111 12827 117.85 548 536 104.3
B 11 111 11260 102.83 548 536 104.3
C 14 238 83443 675.53 525 530 122.7
C 0 10 3833 26.91 525 530 122.7
C 13 61 3694 25.78 525 530 122.7
D 1 52 31969 240.75 534 518 130.6
D 2 136 30246 227.56 534 518 130.6
D 13 172 23800 178.22 534 518 130.6

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