ASTROSAT CZTI

Data Quality Report

Orbit 29039

Creation date: 2024-06-27T19:59:31.455690
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/AS1A10_123T02_9000004160_29039cztM0_level2.evt modeM0/AS1A10_123T02_9000004160_29039cztM0_level2_quad_clean.evt
Size (bytes)493,562,88085,855,680
Size470.7 MB 81.9 MB
Events in quadrant A2,900,107559,745
Events in quadrant B2,970,036581,203
Events in quadrant C3,828,521537,799
Events in quadrant D4,838,449498,549

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0125542
B0126652
C0153782
D0183972

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6047270.446502%
B6047520.859931%
C60471342.215975%
D60474066.714073%

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 7022 6047 0 0 0.00% 0.00%
B 7022 6047 0 0 0.00% 0.00%
C 7022 6048 11 11 0.16% 0.18%
D 7022 6047 396 396 5.64% 6.55%

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 1 113 17244 110.51 747 732 149.4
A 13 254 9679 59.88 747 732 149.4
A 3 137 7258 43.68 747 732 149.4
B 12 111 17524 118.27 749 729 142.0
B 11 111 16144 108.55 749 729 142.0
B 14 111 15311 102.68 749 729 142.0
C 3 233 810185 4763.38 723 727 169.9
C 14 238 116622 682.0 723 727 169.9
C 2 16 72705 423.57 723 727 169.9
D 1 52 1784300 10669.94 704 686 167.2
D 8 195 382766 2285.68 704 686 167.2
D 2 234 19928 115.11 704 686 167.2

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