ASTROSAT CZTI

Data Quality Report

Orbit 05830

Creation date: 2024-06-27T14:59:37.877445
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/AS1G06_052T01_9000000754_05830cztM0_level2.evt modeM0/AS1G06_052T01_9000000754_05830cztM0_level2_quad_clean.evt
Size (bytes)452,125,440103,000,320
Size431.2 MB 98.2 MB
Events in quadrant A3,091,306673,640
Events in quadrant B3,301,567663,588
Events in quadrant C3,072,170666,541
Events in quadrant D3,766,347642,812

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141703
B0146322
C0141112
D0160622

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6784440.648585%
B6784761.120283%
C6784430.633844%
D67841091.606722%

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 8884 6786 2 2 0.02% 0.03%
B 8884 6786 1 1 0.01% 0.01%
C 8884 6786 5 5 0.06% 0.07%
D 8884 6786 80 80 0.90% 1.18%

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 15 223 30967 188.18 789 772 160.5
A 8 15 13015 76.3 789 772 160.5
A 0 226 7745 43.46 789 772 160.5
B 15 204 135662 897.1 796 776 150.4
B 0 214 31363 203.43 796 776 150.4
B 0 219 27062 174.82 796 776 150.4
C 1 16 42928 235.89 773 777 178.7
C 12 4 10052 51.9 773 777 178.7
C 13 61 6212 30.42 773 777 178.7
D 2 152 559608 2993.34 765 740 186.7
D 13 105 115765 616.08 765 740 186.7
D 11 241 61088 323.23 765 740 186.7

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