Can one perform Grahana Tharpanam when he is under Asoucha (due to death to close relatives) or Vridhi (Birth of a child to a blood relative)?

Pt. Shri. Khape Vasudevachar

Tharpanam

Previous (If we are out on Travel during Amavasya, can we perform Tharpana in a Hotel where we may be staying or in any relatives house, if there is one in that place?)     |     Next (Is it possible that we have a Soonya Tithi on an Eclipse day? If it happens should we still perform Tharpana during Eclipse?)