ASTROSAT CZTI

Data Quality Report

Orbit 12952

Creation date: 2024-06-27T16:34:20.019440
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/AS1G08_043T01_9000001902_12952cztM0_level2.evt modeM0/AS1G08_043T01_9000001902_12952cztM0_level2_quad_clean.evt
Size (bytes)472,250,88086,408,640
Size450.4 MB 82.4 MB
Events in quadrant A3,019,376570,706
Events in quadrant B4,912,824504,579
Events in quadrant C2,829,948580,364
Events in quadrant D3,137,689547,221

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0125322
B0185091
C0122061
D0133101

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5919150.253421%
B5919112719.040378%
C5919230.388579%
D5919260.439263%

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 7130 5921 0 0 0.00% 0.00%
B 7130 5921 580 580 8.13% 9.80%
C 7130 5921 0 0 0.00% 0.00%
D 7130 5921 11 11 0.15% 0.19%

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 15 239 62792 419.51 727 710 148.0
A 1 162 53748 358.39 727 710 148.0
A 12 189 43337 288.04 727 710 148.0
B 4 239 1924239 16141.77 638 623 119.2
B 0 85 349957 2931.39 638 623 119.2
B 3 64 118533 989.43 638 623 119.2
C 13 61 5324 27.75 725 729 165.6
C 14 234 1955 7.4 725 729 165.6
C 3 202 1789 6.4 725 729 165.6
D 1 52 336729 1955.79 718 699 171.8
D 8 195 29959 170.3 718 699 171.8
D 13 104 26567 150.56 718 699 171.8

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