ASTROSAT CZTI

Data Quality Report

Orbit 46344

Creation date: 2024-06-27T23:21:59.957171
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/AS1A13_070T05_9000006198_46344cztM0_level2.fits modeM0/AS1A13_070T05_9000006198_46344cztM0_level2_quad_clean.evt
Size (bytes)533,134,080101,733,120
Size508.4 MB 97.0 MB
Events in quadrant A7,564,944659,421
Events in quadrant B3,823,587723,631
Events in quadrant C2,986,366689,270
Events in quadrant D4,891,561586,346

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0268831
B0152511
C0129171
D0185431

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A604269511.502814%
B60421602.648130%
C6043761.257653%
D604360910.077776%

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 7212 6043 429 429 5.95% 7.10%
B 7212 6043 33 33 0.46% 0.55%
C 7213 6044 27 27 0.37% 0.45%
D 7213 6044 416 416 5.77% 6.88%

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 2812587 19795.99 684 670 142.0
A 15 223 2058333 14486.02 684 670 142.0
A 0 243 15497 104.38 684 670 142.0
B 3 112 803273 5879.06 700 680 136.5
B 5 172 80365 583.7 700 680 136.5
B 5 32 69616 504.96 700 680 136.5
C 12 2 88917 547.58 689 693 161.1
C 12 249 60163 369.11 689 693 161.1
C 9 54 54977 336.92 689 693 161.1
D 5 235 1330751 7838.58 670 648 169.7
D 13 249 327346 1925.3 670 648 169.7
D 1 52 185314 1088.28 670 648 169.7

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