ASTROSAT CZTI

Data Quality Report

Orbit 11070

Creation date: 2024-06-27T16:07:51.888118
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_075T01_9000001616_11070cztM0_level2.evt modeM0/AS1G08_075T01_9000001616_11070cztM0_level2_quad_clean.evt
Size (bytes)558,164,16074,721,600
Size532.3 MB 71.3 MB
Events in quadrant A3,654,186458,547
Events in quadrant B4,621,838461,483
Events in quadrant C3,084,185460,020
Events in quadrant D5,091,804417,270

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0152283
B0181252
C0136542
D0195662

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6667610.914954%
B66673124.679766%
C6667220.329984%
D66675027.529624%

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 7827 6668 12 12 0.15% 0.18%
B 7827 6668 159 159 2.03% 2.38%
C 7827 6668 0 0 0.00% 0.00%
D 7827 6668 467 467 5.97% 7.00%

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 15 174 360210 2206.6 804 786 162.9
A 8 15 181843 1111.55 804 786 162.9
A 11 29 9115 51.13 804 786 162.9
B 4 239 1394555 9068.12 806 786 153.7
B 0 214 53819 345.04 806 786 153.7
B 12 111 16579 102.75 806 786 153.7
C 13 61 5830 27.52 790 797 182.9
C 14 234 2841 11.18 790 797 182.9
C 3 202 1959 6.35 790 797 182.9
D 10 253 1541277 8513.54 751 729 181.0
D 11 129 278848 1536.97 751 729 181.0
D 1 52 174827 962.12 751 729 181.0

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