ASTROSAT CZTI

Data Quality Report

Orbit 38304

Creation date: 2024-06-27T21:51:00.545744
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_145T01_9000005370_38304cztM0_level2.fits modeM0/AS1A07_145T01_9000005370_38304cztM0_level2_quad_clean.evt
Size (bytes)355,104,00092,413,440
Size338.7 MB 88.1 MB
Events in quadrant A2,719,512623,254
Events in quadrant B2,886,817640,943
Events in quadrant C2,647,838622,292
Events in quadrant D4,489,690551,169

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0290
B0290
C0290
D0300

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0111593
B0118192
C0108292
D0169802

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5153130.252280%
B5153981.901805%
C5153140.271686%
D51532885.588977%

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 7306 5154 7 7 0.10% 0.14%
B 7306 5154 61 61 0.83% 1.18%
C 7306 5154 8 8 0.11% 0.16%
D 7306 5154 205 205 2.81% 3.98%

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 10 83 364355 3056.94 590 581 119.0
A 12 189 25755 211.55 590 581 119.0
A 13 6 20346 166.09 590 581 119.0
B 5 184 221087 1952.7 590 574 112.9
B 5 172 171141 1510.41 590 574 112.9
B 0 183 106193 935.28 590 574 112.9
C 15 214 217671 1591.52 590 595 136.4
C 14 254 43436 314.09 590 595 136.4
C 0 10 35621 256.8 590 595 136.4
D 2 16 1010447 7210.43 571 556 140.1
D 13 138 572114 4080.82 571 556 140.1
D 12 235 310523 2213.11 571 556 140.1

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