ASTROSAT CZTI

Data Quality Report

Orbit 33613

Creation date: 2024-06-27T20:50:48.153429
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/AS1T04_076T01_9000004810_33613cztM0_level2.evt modeM0/AS1T04_076T01_9000004810_33613cztM0_level2_quad_clean.evt
Size (bytes)490,896,00090,924,480
Size468.2 MB 86.7 MB
Events in quadrant A2,510,570620,028
Events in quadrant B3,800,590620,327
Events in quadrant C3,068,803617,493
Events in quadrant D5,145,966543,089

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0290

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0105983
B0145712
C0121052
D0188822

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5029260.517001%
B50293266.482402%
C50291112.207198%
D502970914.098230%

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 7122 5030 17 17 0.24% 0.34%
B 7122 5030 253 253 3.55% 5.03%
C 7122 5030 83 83 1.17% 1.65%
D 7122 5030 687 687 9.65% 13.66%

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 15 237 58178 460.92 618 609 124.9
A 15 169 51761 409.54 618 609 124.9
A 13 254 9005 67.22 618 609 124.9
B 5 172 927564 8002.53 610 596 115.8
B 0 213 228810 1970.18 610 596 115.8
B 4 170 111872 960.65 610 596 115.8
C 0 10 334585 2409.04 601 608 138.6
C 15 214 215416 1549.45 601 608 138.6
C 3 233 133308 957.19 601 608 138.6
D 12 6 1190920 8078.16 555 546 147.4
D 2 250 557285 3778.16 555 546 147.4
D 8 195 510085 3457.85 555 546 147.4

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