ASTROSAT CZTI

Data Quality Report

Orbit 29210

Creation date: 2024-06-27T20:01:33.871990
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_102T02_9000004200_29210cztM0_level2.evt modeM0/AS1A10_102T02_9000004200_29210cztM0_level2_quad_clean.evt
Size (bytes)251,210,88053,331,840
Size239.6 MB 50.9 MB
Events in quadrant A1,620,560359,904
Events in quadrant B1,680,417366,289
Events in quadrant C1,783,219350,784
Events in quadrant D2,328,587334,027

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0600
B0600
C0600
D0600

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A068091
B069111
C072881
D089081

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2850842.947368%
B2850873.052632%
C28501023.578947%
D28502157.543860%

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 4145 2851 0 0 0.00% 0.00%
B 4145 2851 1 1 0.02% 0.04%
C 4145 2851 0 0 0.00% 0.00%
D 4145 2851 115 115 2.77% 4.03%

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 0 13 35766 432.65 410 403 81.7
A 13 254 5944 67.79 410 403 81.7
A 3 137 3604 39.16 410 403 81.7
B 0 190 37868 495.46 403 394 75.6
B 0 183 34791 454.78 403 394 75.6
B 10 245 20890 270.99 403 394 75.6
C 3 233 181218 2009.5 392 395 90.0
C 14 238 65278 721.05 392 395 90.0
C 2 114 6737 70.48 392 395 90.0
D 1 52 637336 6943.9 391 382 91.7
D 8 195 160687 1747.6 391 382 91.7
D 13 104 18617 198.79 391 382 91.7

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