ASTROSAT CZTI

Data Quality Report

Orbit 48139

Creation date: 2024-08-23T11:13:37.684239
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/AS1C09_009T01_9000006406_48139cztM0_level2.fits modeM0/AS1C09_009T01_9000006406_48139cztM0_level2_quad_clean.evt
Size (bytes)425,839,68079,914,240
Size406.1 MB 76.2 MB
Events in quadrant A6,639,898698,718
Events in quadrant B1,072,681104
Events in quadrant C3,203,051687,784
Events in quadrant D4,359,475600,414

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0248671
B066391
C0138521
D0171823

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61872253.636658%
B6188618799.983840%
C61881402.262443%
D61874607.434944%

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 7117 6188 11 11 0.15% 0.18%
B 7117 6173 0 0 0.00% 0.00%
C 7118 6189 95 95 1.33% 1.53%
D 7117 6188 365 365 5.13% 5.90%

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 3796837 25314.94 715 700 150.0
A 0 31 42226 276.92 715 700 150.0
A 13 248 21640 139.64 715 700 150.0
B 2 177 855128 76772.58 43 42 11.1
B 0 200 25939 2325.12 43 42 11.1
B 4 21 9850 880.6 43 42 11.1
C 10 187 357796 2123.43 704 709 168.2
C 12 2 77891 458.97 704 709 168.2
C 12 249 15948 90.62 704 709 168.2
D 12 2 1135369 6530.49 690 668 173.8
D 2 165 284698 1634.66 690 668 173.8
D 2 37 159837 916.06 690 668 173.8

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