ASTROSAT CZTI

Data Quality Report

Orbit 13214

Creation date: 2024-06-27T16:37:56.966845
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/AS1A04_216T01_9000001968_13214cztM0_level2.evt modeM0/AS1A04_216T01_9000001968_13214cztM0_level2_quad_clean.evt
Size (bytes)469,267,20098,449,920
Size447.5 MB 93.9 MB
Events in quadrant A2,939,841656,100
Events in quadrant B3,842,010661,247
Events in quadrant C2,943,630654,110
Events in quadrant D4,077,509589,593

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0127042
B0153411
C0126821
D0161811

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0240

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6027220.365024%
B60272794.629169%
C6027220.365024%
D60272403.982081%

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 7393 6029 1 1 0.01% 0.02%
B 7393 6029 174 174 2.35% 2.89%
C 7393 6029 13 13 0.18% 0.22%
D 7393 6029 194 194 2.62% 3.22%

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 15 33168 217.38 739 724 149.3
A 12 96 19548 126.12 739 724 149.3
A 1 162 18341 118.04 739 724 149.3
B 4 239 890034 6474.57 741 725 137.4
B 0 219 19277 135.07 741 725 137.4
B 0 214 17748 123.94 741 725 137.4
C 15 208 69592 417.38 722 729 165.0
C 14 234 56595 338.6 722 729 165.0
C 13 61 5323 27.84 722 729 165.0
D 1 52 788244 4775.25 693 675 164.9
D 13 122 522217 3162.25 693 675 164.9
D 8 195 71902 431.87 693 675 164.9

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