ASTROSAT CZTI

Data Quality Report

Orbit 06609

Creation date: 2024-06-27T15:09:22.045043
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_134T03_9000000894_06609cztM0_level2.evt modeM0/AS1G06_134T03_9000000894_06609cztM0_level2_quad_clean.evt
Size (bytes)1,021,449,600164,753,280
Size974.1 MB 157.1 MB
Events in quadrant A6,417,8071,026,641
Events in quadrant B7,331,6931,028,027
Events in quadrant C6,130,2121,023,256
Events in quadrant D10,113,216949,765

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02820
B02820
C02820
D02820

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0287325
B0311083
C0283153
D0395516

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0230

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A139381050.753336%
B139392731.958534%
C13939460.330009%
D139383832.747883%

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 16149 13942 13 13 0.08% 0.09%
B 16150 13943 111 111 0.69% 0.80%
C 16150 13943 0 0 0.00% 0.00%
D 16150 13942 272 272 1.68% 1.95%

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 13 248 124277 376.32 1605 1569 326.1
A 8 15 102319 308.98 1605 1569 326.1
A 0 226 15710 43.37 1605 1569 326.1
B 0 219 508885 1655.04 1617 1575 306.5
B 0 214 140535 453.34 1617 1575 306.5
B 4 48 103712 333.21 1617 1575 306.5
C 9 54 18384 46.27 1561 1566 363.4
C 1 16 14136 34.58 1561 1566 363.4
C 13 61 12401 29.81 1561 1566 363.4
D 8 195 2366658 6208.16 1542 1492 381.0
D 2 33 535225 1400.96 1542 1492 381.0
D 12 221 475117 1243.19 1542 1492 381.0

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