ASTROSAT CZTI

Data Quality Report

Orbit 22489

Creation date: 2024-06-27T18:41:52.235412
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_144T02_9000003340_22489cztM0_level2.evt modeM0/AS1A07_144T02_9000003340_22489cztM0_level2_quad_clean.evt
Size (bytes)326,773,44049,328,640
Size311.6 MB 47.0 MB
Events in quadrant A2,780,981366,257
Events in quadrant B2,853,584374,787
Events in quadrant C819,78442
Events in quadrant D3,048,346352,936

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01193
C01171
D01171

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A012043182
B012208199
C0575262
D013025195

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5687611.072622%
B5689601.054667%
C56905690100.000000%
D5686871.530074%

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 7621 5688 0 0 0.00% 0.00%
B 7621 5691 1 1 0.01% 0.02%
C 7620 5689 0 0 0.00% 0.00%
D 6713 5688 36 36 0.54% 0.63%

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 3 1 14538 96.19 717 702 143.8
A 13 254 8779 56.15 717 702 143.8
A 0 226 6231 38.44 717 702 143.8
B 0 245 17032 119.26 713 695 137.0
B 12 111 16292 113.86 713 695 137.0
B 11 111 14867 103.46 713 695 137.0
C 7 119 808812 655374.88 2 2 1.2
C 7 226 1696 1372.64 2 2 1.2
C 14 238 961 777.07 2 2 1.2
D 1 52 222366 1286.79 700 680 172.3
D 9 85 71334 410.12 700 680 172.3
D 1 20 43093 246.19 700 680 172.3

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