ASTROSAT CZTI

Data Quality Report

Orbit 19292

Creation date: 2024-06-27T18:01:54.392799
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/AS1T03_099T03_9000002854_19292cztM0_level2.evt modeM0/AS1T03_099T03_9000002854_19292cztM0_level2_quad_clean.evt
Size (bytes)555,863,040105,353,280
Size530.1 MB 100.5 MB
Events in quadrant A3,007,401727,732
Events in quadrant B3,183,023729,039
Events in quadrant C3,025,912689,517
Events in quadrant D7,203,223617,301

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129661
B0134191
C0130581
D0252521

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6107590.966104%
B6107741.211724%
C6108811.326130%
D6108172728.274394%

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 7292 6107 0 0 0.00% 0.00%
B 7292 6107 8 8 0.11% 0.13%
C 7293 6108 4 4 0.05% 0.07%
D 7293 6108 1618 1618 22.19% 26.49%

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 13 254 7730 44.25 779 765 157.4
A 0 226 6945 39.26 779 765 157.4
A 3 137 5738 31.59 779 765 157.4
B 7 220 75589 522.14 766 748 143.3
B 0 229 24506 165.75 766 748 143.3
B 6 36 19095 128.0 766 748 143.3
C 14 238 115865 689.16 728 733 167.1
C 5 112 57684 340.9 728 733 167.1
C 3 233 7061 37.88 728 733 167.1
D 7 223 4160344 27418.5 635 617 151.7
D 1 52 476178 3134.62 635 617 151.7
D 13 104 54572 355.64 635 617 151.7

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